![Sang Soon Oh MSc, PhD FHEA](https://profiles-cardiff.imgix.net/attachments/3620?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Sang Soon Oh
(e/fe)
MSc, PhD FHEA
- Ar gael fel goruchwyliwr ôl-raddedig
Timau a rolau for Sang Soon Oh
Darlithydd
Trosolwyg
Rwyf wedi bod yn gymrawd Seren Sêr Cymru II yn yr Ysgol Ffiseg a Seryddiaeth ym Mhrifysgol Caerdydd ers mis Tachwedd 2017. Mae fy arbenigedd yn theori ac efelychiadau ynysyddion topolegol ffotonig, crisialau ffotonig, laserau anhrefnus lled-ddargludyddion, rhyngweithio mater ysgafn mewn systemau plasmonig a metamaterials chiral graphene. Yng Nghaerdydd, rwyf wedi bod yn gweithio ar theori ac arbrofion ar laserau lled-ddargludyddion yn seiliedig ar ynysydd topolegol ffotonig.
Ar hyn o bryd, rwy'n arwain grŵp ymchwil (3 myfyriwr PhD) ar ffotoneg topolegol gyda ffocws ar yr astudiaeth ddamcaniaethol ar gyfnodau topolegol mewn ffotoneg.
Am fanylion fy ymchwil a newyddion gan fy ngrŵp, ewch i dudalen we grŵp Topological Photonics Resaerch.
Cyhoeddiad
2025
- Wong, S., Cerjan, A., Makris, K., Khajavikhan, M., Christodoulides, D. and Oh, S. S. 2025. Nonlinear topological photonics: capturing nonlinear dynamics and optical thermodynamics. ACS Photonics (10.1021/acsphotonics.4c02430)
- Park, H., Ghatak, A. and Oh, S. S. 2025. Non-Abelian topological charge of photons in periodic/non-periodic media and non-Hermitian systems. Advances in Physics: X 10(1), article number: 2477693. (10.1080/23746149.2025.2477693)
2024
- Temu, B., Yan, Z., Ratiu, B., Oh, S. S. and Li, Q. 2024. Room temperature lasing from InGaAs quantum well nanowires on silicon-on-insulator substrates. Applied Physics Letters 125(22), article number: 223501. (10.1063/5.0237589)
- Alharbi, G., Wong, S., Gong, Y. and Oh, S. S. 2024. Asymmetrical temporal dynamics of edge modes in Su-Schrieffer-Heeger lattice with Kerr nonlinearity. Physical Review Research 6, article number: L042013. (10.1103/PhysRevResearch.6.L042013)
- Ahmad, Z., Oh, S. S. and Muljarov, E. 2024. Transverse-electric surface plasmon polaritons in periodically modulated graphene. Physical Review Research 6, article number: 23185. (10.1103/PhysRevResearch.6.023185)
- Park, H., Jones, A., Kim, M. and Oh, S. S. 2024. Topological phase transition and surface states in a non-Abelian charged nodal line photonic crystal. Nanophotonics 13(7), pp. 1079-1089. (10.1515/nanoph-2023-0906)
- Park, H., Oh, S. S. and Lee, S. 2024. Surface potential-adjusted surface states in 3D topological photonic crystals. Scientific Reports 14(1), article number: 7173. (10.1038/s41598-024-56894-6)
2023
- Ratiu, B. et al. 2023. Curved InGaAs nanowire array lasers grown directly on silicon-on-insulator. Optics Express 31(22), pp. 36668-36676. (10.1364/OE.499696)
- Thurn, A. et al. 2023. Self-induced ultrafast electron-hole-plasma temperature oscillations in nanowire lasers. Physical Review Applied 20, article number: 34045. (10.1103/PhysRevApplied.20.034045)
- Wong, S., Olthaus, J., Bracht, T. K., Reiter, D. E. and Oh, S. S. 2023. A machine learning approach to drawing phase diagrams of topological lasing modes. Communications Physics 6(1), article number: 104. (10.1038/s42005-023-01230-z)
- Messina, C. et al. 2023. Deformed honeycomb lattices of InGaAs nanowires grown on silicon-on-insulator for photonic crystal surface-emitting lasers. Advanced Optical Materials 11(5), article number: 2201809. (10.1002/adom.202201809)
- Olthaus, J., Sohr, M., Wong, S., Oh, S. S. and Reiter, D. E. 2023. Modelling spatio-temporal dynamics of chiral coupling of quantum emitters to light fields in nanophotonic structures. Physical Review A 107, article number: 23502. (10.1103/PhysRevA.107.023502)
2022
- Park, H., Gao, W., Zhang, X. and Oh, S. S. 2022. Nodal lines in momentum space: topological invariants and recent realizations in photonic and other systems. Nanophotonics 11(11), pp. 2779-2801. (10.1515/nanoph-2021-0692)
- Park, H., Wong, S., Bouhan, A., Slager, R. and Oh, S. S. 2022. Topological phase transitions of non-Abelian charged nodal lines in spring-mass systems. Physical Review B (Condensed Matter) 105(21), article number: 214108. (10.1103/PhysRevB.105.214108)
- Gong, Y., Messina, C., Wong, S., Abouzaid, O., Ratiu, B., Li, Q. and Oh, S. S. 2022. Topological lasers with epitaxially grown InGaAs nanowires on a SOI substrate. Presented at: Conference on Lasers and Electro-Optics, QELS_Fundamental Science 2022, San Jose, US, 15–20 May 2022Conference on Lasers and Electro-Optics. Technical Digest Series San Jose, US: Optica Publishing Group, (10.1364/CLEO_QELS.2022.FF2C.1)
- Park, H. and Oh, S. S. 2022. Sign freedom of non-abelian topological charges in phononic and photonic topological semimetals. New Journal of Physics 24(5), article number: 53042. (10.1088/1367-2630/ac6ca3)
- Kim, Y. et al. 2022. Self-assembled honeycomb lattices of dielectric colloidal nanospheres featuring photonic Dirac cones. ACS Applied Nano Material 5(3), pp. 3386-3393. (10.1021/acsanm.1c03986)
- Wong, S. and Oh, S. S. 2022. Erratum: Topological bulk lasing modes using an imaginary gauge field [Phys. Rev. Research 3, 033042 (2021)]. Physical Review Research 4(1), article number: 19001. (10.1103/PhysRevResearch.4.019001)
- Park, H., Jo, S., Kang, B., Hur, K., Oh, S. S., Ryu, D. Y. and Lee, S. 2022. Block copolymer gyroids for nanophotonics: significance of lattice transformations. Nanophotonics 11(11), pp. 2583-2615. (10.1515/nanoph-2021-0644)
2021
- Yang, J., Hwang, Y. and Oh, S. S. 2021. Evolution of topological edge modes from honeycomb photonic crystals to triangular-lattice photonic crystals. Physical Review Research 3(2), article number: L022025. (10.1103/PhysRevResearch.3.L022025)
- Park, H., Wong, S., Zhang, X. and Oh, S. S. 2021. Non-abelian charged nodal links in a dielectric photonic crystal. ACS Photonics 8(9), pp. 2746-2754. (10.1021/acsphotonics.1c00876)
- Ahmad, Z., Muljarov, E. and Oh, S. S. 2021. Extended frequency range of transverse-electric surface plasmon polaritons in graphene. Physical Review B (Condensed Matter) 104, article number: 85426. (10.1103/PhysRevB.104.085426)
- Wong, S. and Oh, S. S. 2021. Topological bulk lasing modes using an imaginary gauge field. Physical Review Research 3(3), article number: 33042. (10.1103/PhysRevResearch.3.033042)
- Gong, Y., Guo, L., Wong, S., Bennett, A. J. and Oh, S. S. 2021. Tailoring topological edge states with photonic crystal nanobeam cavities. Scientific Reports 11, article number: 1055. (10.1038/s41598-020-79915-6)
- Gong, Y. et al. 2021. Integrated and spectrally selective thermal emitters enabled by layered metamaterials. Nanophotonics 10(4), pp. 1285-1293. (10.1515/nanoph-2020-0578)
2020
- Gong, Y., Wong, S., Bennett, A. J., Huffaker, D. L. and Oh, S. S. 2020. Topological insulator laser using valley-hall photonic crystals. ACS Photonics 7(8), pp. 2089-2097. (10.1021/acsphotonics.0c00521)
- Wong, S., Saba, M., Hess, O. and Oh, S. S. 2020. Gapless unidirectional photonic transport using all-dielectric kagome lattices. Physical Review Research 2(1), article number: 012011(R). (10.1103/PhysRevResearch.2.012011)
- Saba, M., Wong, S., Elman, M., Oh, S. S. and Hess, O. 2020. Nature of topological protection in photonic spin and valley Hall insulators. Physical Review B 101(5), article number: 54307. (10.1103/PhysRevB.101.054307)
2019
- Oh, S. S., Lang, B., Beggs, D. M., Huffaker, D. L., Saba, M. and Hess, O. 2019. Chiral light-matter interaction in dielectric photonic topological insulators. Presented at: CLEO Pacific Rim Conference 2018, Hong Kong, China, 29 Jul - 3 Aug 2018CLEO Pacific Rim Conference 2018, Vol. Th4H. OSA publishing pp. Th4H.5., (10.1364/CLEOPR.2018.Th4H.5)
2018
- Kerber, R. M., Fitzgerald, J. M., Oh, S. S., Reiter, D. E. and Hess, O. 2018. Orbital angular momentum dichroism in nanoantennas. Communications Physics 1(1), article number: 87. (10.1038/s42005-018-0088-2)
- Kerber, R. M., Fitzgerald, J. M., Xiao, X., Oh, S. S., Maier, A. A., Giannini, V. and Reiter, D. E. 2018. Interaction of an Archimedean spiral structure with orbital angular momentum light. New Journal of Physics 20, article number: 95005. (10.1088/1367-2630/aae105)
- Bittner, S. et al. 2018. Suppressing spatiotemporal lasing instabilities with wave-chaotic microcavities. Science 361(6408), pp. 1225-1231. (10.1126/science.aas9437)
- Kim, T. et al. 2018. Electrically tunable slow light using graphene metamaterials. ACS Photonics 5(5), pp. 1800-1807. (10.1021/acsphotonics.7b01551)
- Kim, M., Oh, S. S., Hess, O. and Rho, J. 2018. Frequency-domain modelling of gain in pump-probe experiment by an inhomogeneous medium. Journal of Physics: Condensed Matter 30(6), pp. 64003. (10.1088/1361-648X/aaa473)
2017
- Kim, T., Oh, S. S., Kim, H., Park, H. S., Hess, O., Min, B. and Zhang, S. 2017. Electrical access to critical coupling of circularly polarized waves in graphene chiral metamaterials. Science Advances 3(9), article number: e1701377. (10.1126/sciadv.1701377)
- Kerber, R. M., Fitzgerald, J. M., Reiter, D. E., Oh, S. S. and Hess, O. 2017. Reading the orbital angular momentum of light using plasmonic nanoantennas. ACS Photonics 4(4), pp. 891-896. (10.1021/acsphotonics.6b00980)
- Choi, H. J. et al. 2017. Control of terahertz nonlinear transmission with electrically gated graphene metadevices. Scientific Reports 7, article number: 42833. (10.1038/srep42833)
- Baek, I. H. et al. 2017. Boosting the terahertz nonlinearity of graphene by orientation disorder. 2D Materials 4(2), article number: 25035. (10.1088/2053-1583/aa5c64)
2015
- Pusch, A. et al. 2015. A highly efficient CMOS nanoplasmonic crystal enhanced slow-wave thermal emitter improves infrared gas-sensing devices. Scientific Reports 5, article number: 17451. (10.1038/srep17451)
- Oh, S. S. and Hess, O. 2015. Chiral metamaterials: enhancement and control of optical activity and circular dichroism. Nano Convergence 2(24) (10.1186/s40580-015-0058-2)
- Yudistira, H. T., Tenggara, A. P., Oh, S. S., Nguyen, V., Choi, M., Choi, C. and Byun, D. 2015. High-resolution electrohydrodynamic jet printing for the direct fabrication of 3D multilayer terahertz metamaterial of high refractive index. Journal of Micromechanics and Microengineering 25(4), article number: 45006. (10.1088/0960-1317/25/4/045006)
- Kim, S., Oh, S. S., Kim, K., Kim, J., Park, H. Y., Hess, O. and Kee, C. 2015. Subwavelength localization and toroidal dipole moment of spoof surface plasmon polaritons. Physical Review B 91(3), article number: 35116. (10.1103/PhysRevB.91.035116)
2014
- Kim, T. et al. 2014. Optical activity Enhanced by strong inter-molecular coupling in planar chiral metamaterials. Scientific Reports 4(1), article number: 5864. (10.1038/srep05864)
2013
- Salvatore, S. et al. 2013. Tunable 3D extended self-assembled gold metamaterials with enhanced light transmission. Advanced Materials 25(19), pp. 2713-2716. (10.1002/adma.201300193)
- Oh, S. S., Demetriadou, A., Wuestner, S. and Hess, O. 2013. On the origin of chirality in nanoplasmonic gyroid metamaterials. Advanced Materials 25(4), pp. 612. (10.1002/adma.201202788)
2012
- Demetriadou, A., Oh, S. S., Wuestner, S. and Hess, O. 2012. A tri-helical model for nanoplasmonic gyroid metamaterials. New Journal of Physics 14(8), article number: 83032. (10.1088/1367-2630/14/8/083032)
2011
- Kim, S., Kim, T., Oh, S. S., Kim, J., Park, H. Y. and Kee, C. 2011. Experimental demonstration of self-collimation of spoof surface plasmons. Physical Review B: Condensed Matter and Materials Physics 83(16), article number: 165109. (10.1103/PhysRevB.83.165109)
- Jin Hyun, W., Ken Lee, H., Oh, S. S., Hess, O., Choi, C., Hyuk Im, S. and Park, O. O. 2011. Two-dimensional TiO2 inverse opal with a closed top surface structure for enhanced light extraction from polymer light-emitting diodes. Advanced Materials 23(16), pp. 1846-1850. (10.1002/adma.201004660)
2010
- Oh, S. S., Choi, C. and Kim, Y. 2010. Fabrication of micro-lens arrays with moth-eye antireflective nanostructures using thermal imprinting process. Microelectronic Engineering 87(11), pp. 2328-2331. (10.1016/j.mee.2010.03.012)
- Kang, Y. H., Oh, S. S., Kim, Y. and Choi, C. 2010. Fabrication of antireflection nanostructures by hybrid nano-patterning lithography. Microelectronic Engineering 87(2), pp. 125-128. (10.1016/j.mee.2009.06.006)
2009
- Oh, S. S. and Choi, C. 2009. Photonic-crystal-slab-type guided mode resonance filters in infrared range. IEEE Photonics Technology Letters 21(5), pp. 316-318. (10.1109/LPT.2008.2011137)
2008
- Oh, S. S. and Choi, C. 2008. Photonic-crystal-type infrared filters for gas sensors. Journal of the Korean Physical Society 53(3), pp. 1671-1674. (10.3938/jkps.53.1671)
2007
- Oh, S. S., Lee, S., Kim, J. and Park, H. Y. 2007. Self-collimation phenomena of surface waves in structured perfect electric conductors and metal surfaces. Optics Express 15(3), pp. 1205-1210. (10.1364/OE.15.001205)
2006
- Choi, H., Oh, S. S., Lee, S., Kim, M., Kim, J., Park, H. Y. and Kee, C. 2006. Coupling characteristics of surface modes in truncated two-dimensional photonic crystals. Journal of Applied Physics 100(12), article number: 123105. (10.1063/1.2401282)
2005
- Lee, S., Oh, S. S., Kim, J., Park, H. Y. and Kee, C. 2005. Line-defect-induced bending and splitting of self-collimated beams in two-dimensional photonic crystals. Applied Physics Letters 87(18), article number: 181106. (10.1063/1.2112186)
- Kee, C. et al. 2005. Photonic band gaps and defect modes of polymer photonic crystal slabs. Applied Physics Letters 86(5), article number: 51101. (10.1063/1.1857069)
2000
- Oh, S. S., Kee, C., Kim, J., Park, H. Y., Kim, T. I., Park, I. and Lim, H. 2000. Duplexer using microwave photonic band gap structure. Applied Physics Letters 76(16), article number: 2301. (10.1063/1.126326)
1999
- Kee, C., Oh, S. S., Chang, K. J., Kim, J., Park, H. Y. and Lee, K. 1999. Thermal properties of a photon gas in photonic crystals. Physical Review B 60(15), article number: 10573. (10.1103/PhysRevB.60.10573)
Cynadleddau
- Gong, Y., Messina, C., Wong, S., Abouzaid, O., Ratiu, B., Li, Q. and Oh, S. S. 2022. Topological lasers with epitaxially grown InGaAs nanowires on a SOI substrate. Presented at: Conference on Lasers and Electro-Optics, QELS_Fundamental Science 2022, San Jose, US, 15–20 May 2022Conference on Lasers and Electro-Optics. Technical Digest Series San Jose, US: Optica Publishing Group, (10.1364/CLEO_QELS.2022.FF2C.1)
- Oh, S. S., Lang, B., Beggs, D. M., Huffaker, D. L., Saba, M. and Hess, O. 2019. Chiral light-matter interaction in dielectric photonic topological insulators. Presented at: CLEO Pacific Rim Conference 2018, Hong Kong, China, 29 Jul - 3 Aug 2018CLEO Pacific Rim Conference 2018, Vol. Th4H. OSA publishing pp. Th4H.5., (10.1364/CLEOPR.2018.Th4H.5)
Erthyglau
- Wong, S., Cerjan, A., Makris, K., Khajavikhan, M., Christodoulides, D. and Oh, S. S. 2025. Nonlinear topological photonics: capturing nonlinear dynamics and optical thermodynamics. ACS Photonics (10.1021/acsphotonics.4c02430)
- Park, H., Ghatak, A. and Oh, S. S. 2025. Non-Abelian topological charge of photons in periodic/non-periodic media and non-Hermitian systems. Advances in Physics: X 10(1), article number: 2477693. (10.1080/23746149.2025.2477693)
- Temu, B., Yan, Z., Ratiu, B., Oh, S. S. and Li, Q. 2024. Room temperature lasing from InGaAs quantum well nanowires on silicon-on-insulator substrates. Applied Physics Letters 125(22), article number: 223501. (10.1063/5.0237589)
- Alharbi, G., Wong, S., Gong, Y. and Oh, S. S. 2024. Asymmetrical temporal dynamics of edge modes in Su-Schrieffer-Heeger lattice with Kerr nonlinearity. Physical Review Research 6, article number: L042013. (10.1103/PhysRevResearch.6.L042013)
- Ahmad, Z., Oh, S. S. and Muljarov, E. 2024. Transverse-electric surface plasmon polaritons in periodically modulated graphene. Physical Review Research 6, article number: 23185. (10.1103/PhysRevResearch.6.023185)
- Park, H., Jones, A., Kim, M. and Oh, S. S. 2024. Topological phase transition and surface states in a non-Abelian charged nodal line photonic crystal. Nanophotonics 13(7), pp. 1079-1089. (10.1515/nanoph-2023-0906)
- Park, H., Oh, S. S. and Lee, S. 2024. Surface potential-adjusted surface states in 3D topological photonic crystals. Scientific Reports 14(1), article number: 7173. (10.1038/s41598-024-56894-6)
- Ratiu, B. et al. 2023. Curved InGaAs nanowire array lasers grown directly on silicon-on-insulator. Optics Express 31(22), pp. 36668-36676. (10.1364/OE.499696)
- Thurn, A. et al. 2023. Self-induced ultrafast electron-hole-plasma temperature oscillations in nanowire lasers. Physical Review Applied 20, article number: 34045. (10.1103/PhysRevApplied.20.034045)
- Wong, S., Olthaus, J., Bracht, T. K., Reiter, D. E. and Oh, S. S. 2023. A machine learning approach to drawing phase diagrams of topological lasing modes. Communications Physics 6(1), article number: 104. (10.1038/s42005-023-01230-z)
- Messina, C. et al. 2023. Deformed honeycomb lattices of InGaAs nanowires grown on silicon-on-insulator for photonic crystal surface-emitting lasers. Advanced Optical Materials 11(5), article number: 2201809. (10.1002/adom.202201809)
- Olthaus, J., Sohr, M., Wong, S., Oh, S. S. and Reiter, D. E. 2023. Modelling spatio-temporal dynamics of chiral coupling of quantum emitters to light fields in nanophotonic structures. Physical Review A 107, article number: 23502. (10.1103/PhysRevA.107.023502)
- Park, H., Gao, W., Zhang, X. and Oh, S. S. 2022. Nodal lines in momentum space: topological invariants and recent realizations in photonic and other systems. Nanophotonics 11(11), pp. 2779-2801. (10.1515/nanoph-2021-0692)
- Park, H., Wong, S., Bouhan, A., Slager, R. and Oh, S. S. 2022. Topological phase transitions of non-Abelian charged nodal lines in spring-mass systems. Physical Review B (Condensed Matter) 105(21), article number: 214108. (10.1103/PhysRevB.105.214108)
- Park, H. and Oh, S. S. 2022. Sign freedom of non-abelian topological charges in phononic and photonic topological semimetals. New Journal of Physics 24(5), article number: 53042. (10.1088/1367-2630/ac6ca3)
- Kim, Y. et al. 2022. Self-assembled honeycomb lattices of dielectric colloidal nanospheres featuring photonic Dirac cones. ACS Applied Nano Material 5(3), pp. 3386-3393. (10.1021/acsanm.1c03986)
- Wong, S. and Oh, S. S. 2022. Erratum: Topological bulk lasing modes using an imaginary gauge field [Phys. Rev. Research 3, 033042 (2021)]. Physical Review Research 4(1), article number: 19001. (10.1103/PhysRevResearch.4.019001)
- Park, H., Jo, S., Kang, B., Hur, K., Oh, S. S., Ryu, D. Y. and Lee, S. 2022. Block copolymer gyroids for nanophotonics: significance of lattice transformations. Nanophotonics 11(11), pp. 2583-2615. (10.1515/nanoph-2021-0644)
- Yang, J., Hwang, Y. and Oh, S. S. 2021. Evolution of topological edge modes from honeycomb photonic crystals to triangular-lattice photonic crystals. Physical Review Research 3(2), article number: L022025. (10.1103/PhysRevResearch.3.L022025)
- Park, H., Wong, S., Zhang, X. and Oh, S. S. 2021. Non-abelian charged nodal links in a dielectric photonic crystal. ACS Photonics 8(9), pp. 2746-2754. (10.1021/acsphotonics.1c00876)
- Ahmad, Z., Muljarov, E. and Oh, S. S. 2021. Extended frequency range of transverse-electric surface plasmon polaritons in graphene. Physical Review B (Condensed Matter) 104, article number: 85426. (10.1103/PhysRevB.104.085426)
- Wong, S. and Oh, S. S. 2021. Topological bulk lasing modes using an imaginary gauge field. Physical Review Research 3(3), article number: 33042. (10.1103/PhysRevResearch.3.033042)
- Gong, Y., Guo, L., Wong, S., Bennett, A. J. and Oh, S. S. 2021. Tailoring topological edge states with photonic crystal nanobeam cavities. Scientific Reports 11, article number: 1055. (10.1038/s41598-020-79915-6)
- Gong, Y. et al. 2021. Integrated and spectrally selective thermal emitters enabled by layered metamaterials. Nanophotonics 10(4), pp. 1285-1293. (10.1515/nanoph-2020-0578)
- Gong, Y., Wong, S., Bennett, A. J., Huffaker, D. L. and Oh, S. S. 2020. Topological insulator laser using valley-hall photonic crystals. ACS Photonics 7(8), pp. 2089-2097. (10.1021/acsphotonics.0c00521)
- Wong, S., Saba, M., Hess, O. and Oh, S. S. 2020. Gapless unidirectional photonic transport using all-dielectric kagome lattices. Physical Review Research 2(1), article number: 012011(R). (10.1103/PhysRevResearch.2.012011)
- Saba, M., Wong, S., Elman, M., Oh, S. S. and Hess, O. 2020. Nature of topological protection in photonic spin and valley Hall insulators. Physical Review B 101(5), article number: 54307. (10.1103/PhysRevB.101.054307)
- Kerber, R. M., Fitzgerald, J. M., Oh, S. S., Reiter, D. E. and Hess, O. 2018. Orbital angular momentum dichroism in nanoantennas. Communications Physics 1(1), article number: 87. (10.1038/s42005-018-0088-2)
- Kerber, R. M., Fitzgerald, J. M., Xiao, X., Oh, S. S., Maier, A. A., Giannini, V. and Reiter, D. E. 2018. Interaction of an Archimedean spiral structure with orbital angular momentum light. New Journal of Physics 20, article number: 95005. (10.1088/1367-2630/aae105)
- Bittner, S. et al. 2018. Suppressing spatiotemporal lasing instabilities with wave-chaotic microcavities. Science 361(6408), pp. 1225-1231. (10.1126/science.aas9437)
- Kim, T. et al. 2018. Electrically tunable slow light using graphene metamaterials. ACS Photonics 5(5), pp. 1800-1807. (10.1021/acsphotonics.7b01551)
- Kim, M., Oh, S. S., Hess, O. and Rho, J. 2018. Frequency-domain modelling of gain in pump-probe experiment by an inhomogeneous medium. Journal of Physics: Condensed Matter 30(6), pp. 64003. (10.1088/1361-648X/aaa473)
- Kim, T., Oh, S. S., Kim, H., Park, H. S., Hess, O., Min, B. and Zhang, S. 2017. Electrical access to critical coupling of circularly polarized waves in graphene chiral metamaterials. Science Advances 3(9), article number: e1701377. (10.1126/sciadv.1701377)
- Kerber, R. M., Fitzgerald, J. M., Reiter, D. E., Oh, S. S. and Hess, O. 2017. Reading the orbital angular momentum of light using plasmonic nanoantennas. ACS Photonics 4(4), pp. 891-896. (10.1021/acsphotonics.6b00980)
- Choi, H. J. et al. 2017. Control of terahertz nonlinear transmission with electrically gated graphene metadevices. Scientific Reports 7, article number: 42833. (10.1038/srep42833)
- Baek, I. H. et al. 2017. Boosting the terahertz nonlinearity of graphene by orientation disorder. 2D Materials 4(2), article number: 25035. (10.1088/2053-1583/aa5c64)
- Pusch, A. et al. 2015. A highly efficient CMOS nanoplasmonic crystal enhanced slow-wave thermal emitter improves infrared gas-sensing devices. Scientific Reports 5, article number: 17451. (10.1038/srep17451)
- Oh, S. S. and Hess, O. 2015. Chiral metamaterials: enhancement and control of optical activity and circular dichroism. Nano Convergence 2(24) (10.1186/s40580-015-0058-2)
- Yudistira, H. T., Tenggara, A. P., Oh, S. S., Nguyen, V., Choi, M., Choi, C. and Byun, D. 2015. High-resolution electrohydrodynamic jet printing for the direct fabrication of 3D multilayer terahertz metamaterial of high refractive index. Journal of Micromechanics and Microengineering 25(4), article number: 45006. (10.1088/0960-1317/25/4/045006)
- Kim, S., Oh, S. S., Kim, K., Kim, J., Park, H. Y., Hess, O. and Kee, C. 2015. Subwavelength localization and toroidal dipole moment of spoof surface plasmon polaritons. Physical Review B 91(3), article number: 35116. (10.1103/PhysRevB.91.035116)
- Kim, T. et al. 2014. Optical activity Enhanced by strong inter-molecular coupling in planar chiral metamaterials. Scientific Reports 4(1), article number: 5864. (10.1038/srep05864)
- Salvatore, S. et al. 2013. Tunable 3D extended self-assembled gold metamaterials with enhanced light transmission. Advanced Materials 25(19), pp. 2713-2716. (10.1002/adma.201300193)
- Oh, S. S., Demetriadou, A., Wuestner, S. and Hess, O. 2013. On the origin of chirality in nanoplasmonic gyroid metamaterials. Advanced Materials 25(4), pp. 612. (10.1002/adma.201202788)
- Demetriadou, A., Oh, S. S., Wuestner, S. and Hess, O. 2012. A tri-helical model for nanoplasmonic gyroid metamaterials. New Journal of Physics 14(8), article number: 83032. (10.1088/1367-2630/14/8/083032)
- Kim, S., Kim, T., Oh, S. S., Kim, J., Park, H. Y. and Kee, C. 2011. Experimental demonstration of self-collimation of spoof surface plasmons. Physical Review B: Condensed Matter and Materials Physics 83(16), article number: 165109. (10.1103/PhysRevB.83.165109)
- Jin Hyun, W., Ken Lee, H., Oh, S. S., Hess, O., Choi, C., Hyuk Im, S. and Park, O. O. 2011. Two-dimensional TiO2 inverse opal with a closed top surface structure for enhanced light extraction from polymer light-emitting diodes. Advanced Materials 23(16), pp. 1846-1850. (10.1002/adma.201004660)
- Oh, S. S., Choi, C. and Kim, Y. 2010. Fabrication of micro-lens arrays with moth-eye antireflective nanostructures using thermal imprinting process. Microelectronic Engineering 87(11), pp. 2328-2331. (10.1016/j.mee.2010.03.012)
- Kang, Y. H., Oh, S. S., Kim, Y. and Choi, C. 2010. Fabrication of antireflection nanostructures by hybrid nano-patterning lithography. Microelectronic Engineering 87(2), pp. 125-128. (10.1016/j.mee.2009.06.006)
- Oh, S. S. and Choi, C. 2009. Photonic-crystal-slab-type guided mode resonance filters in infrared range. IEEE Photonics Technology Letters 21(5), pp. 316-318. (10.1109/LPT.2008.2011137)
- Oh, S. S. and Choi, C. 2008. Photonic-crystal-type infrared filters for gas sensors. Journal of the Korean Physical Society 53(3), pp. 1671-1674. (10.3938/jkps.53.1671)
- Oh, S. S., Lee, S., Kim, J. and Park, H. Y. 2007. Self-collimation phenomena of surface waves in structured perfect electric conductors and metal surfaces. Optics Express 15(3), pp. 1205-1210. (10.1364/OE.15.001205)
- Choi, H., Oh, S. S., Lee, S., Kim, M., Kim, J., Park, H. Y. and Kee, C. 2006. Coupling characteristics of surface modes in truncated two-dimensional photonic crystals. Journal of Applied Physics 100(12), article number: 123105. (10.1063/1.2401282)
- Lee, S., Oh, S. S., Kim, J., Park, H. Y. and Kee, C. 2005. Line-defect-induced bending and splitting of self-collimated beams in two-dimensional photonic crystals. Applied Physics Letters 87(18), article number: 181106. (10.1063/1.2112186)
- Kee, C. et al. 2005. Photonic band gaps and defect modes of polymer photonic crystal slabs. Applied Physics Letters 86(5), article number: 51101. (10.1063/1.1857069)
- Oh, S. S., Kee, C., Kim, J., Park, H. Y., Kim, T. I., Park, I. and Lim, H. 2000. Duplexer using microwave photonic band gap structure. Applied Physics Letters 76(16), article number: 2301. (10.1063/1.126326)
- Kee, C., Oh, S. S., Chang, K. J., Kim, J., Park, H. Y. and Lee, K. 1999. Thermal properties of a photon gas in photonic crystals. Physical Review B 60(15), article number: 10573. (10.1103/PhysRevB.60.10573)
Ymchwil
Fy nghefndir ymchwil yw electromangetiaeth ddamcaniaethol mewn deunyddiau cyfansawdd megis modelu dadansoddol a rhifiadol metamaterials chiral, metamaterials gweithredol a metamaterials graphene. Mae diddordeb cyfredol yn cynnwys ynysyddion topolegol ffotoneg a laserau lled-ddargludyddion anhrefnus . Gyda'r felloswship Rising Star wedi'i ariannu gan y goverement Cymreig, rwy'n canolbwyntio ar delveloping laser ynysydd topolegol ffotonig gan ddefnyddio nanowires lled-ddargludyddion III-V.
- Cymrodoriaeth Seren Rising Sêr Sêr Cymu, "Laser Lled-ddargludyddion Sbectrwm Topolegol Ffotoneg a Ffotoneg Unffordd" (Llywodraeth Cymru a'r ERDF, £983K, tua 5 mlynedd rhwng Rhagfyr 2017 a Mawrth 2023)
Ar hyn o bryd rwy'n arwain tîm o a 3 myfyriwr PhD (Ghada Alharbi, Kyle Netherwood, Ion Wood-thanan). Bydd croeso i ddarpar ymgeiswyr ar gyfer ysgoloriaethau PhD (EPSRC, a ariennir neu hunan-ariannu eraill ac ati) a chymrodoriaethau (cymrodoriaeth Leverhulme, ac ati) gysylltu â mi.
Addysgu
- PX2131: DMO Ffiseg Caeau a Llif (22/23, 23/24)
- PX2231: DMO Ffiseg Thermol ac Ystadegol (24/25)
- PX3248: DMO Ffiseg Ddamcaniaethol (23/24)
- PX3249: MO o Mecansmics Statsitaical (24/25)
- PX4133: MO (23/24,24/25) a DMO (21/22, 22/23) o Opteg Cwantwm Modern
- PX3315: Prosiect Goruchwylydd Ffiseg ar gyfer myfyrwyr israddedig Blwyddyn 3 ar "Emitters Cwantwm Nanowire", "glöyn byw Hofstadter mewn cyseinydd cylch optegol" (2018-2025)
- Trefnydd seminarau ffiseg ers 2018-2022. Rhestr o sgyrsiau
Bywgraffiad
Derbyniodd Sang Soon O radd PhD mewn Ffiseg o Sefydliad Gwyddoniaeth a Thechnoleg Uwch Corea (KAIST) yn Ne Korea (2007). Whie ei fod yn gwneud ei gwrs PhD, ymwelodd â Phrifysgol St Andrews (2004-2005). Ar ôl gweithio fel cymrawd ôl-ddoethurol yn Electronics Telecommunications Research Institute (ETRI) yn Ne Korea (2007-2010), ymunodd â'r Adran Ffiseg ym Mhrifysgol Surrey, y DU fel postdoc (2010) ac yna symudodd i Goleg Imperial Llundain i ymuno â'r grŵp Theori Mater Cyddwysedig (CMTH) yn yr Adran Ffiseg a Dyfais Lled-ddargludyddion Optegol (OSD) yn yr Adran Peirianneg Drydanol ac Electroneg. Yn 2017, ymunodd â'r Sefydliad Lled-ddargludyddion Cyfansawdd ym Mhrifysgol Caerdydd fel Cymrawd Seren Rising Sêr Cymru.
- Golygydd gwadd Special Issue: Selected Papers from Semiconductor and Integrated Optoelectroneg (SIOE) 2019
- Adolygydd mewn cyfnodolion >40 gan gynnwys Nature, Nature Physics, Nature Nano, Nature Communications, Physical Review Letters, Physical Reivew B, Physical Reivew E, Nano Letters, Light: Science and Applications, ACS Photonics, Scientific Reports, Optics Letters, Optics Express a Optics Communications
- Aelod o Rwydwaith Metamaterials EPSRC y DU (ers Mawrth 2021)
Anrhydeddau a dyfarniadau
- adolygydd rhagorol ar gyfer golau: Gwyddoniaeth a Cheisiadau yn 2022 a 2023
Aelodaethau proffesiynol
- Aelod, Cymdeithas Gorfforol Corea(2007-2010, 2022-)
- Aelod, METAMORPHOSE (2014-2015, 2022-)
- Aelod, OPTICA (2022-)
- Aelod, Sefydliad Ffiseg (2023-)
Ymrwymiadau siarad cyhoeddus
- "Rhwym-wladwriaeth-yn-y-continwwm dulliau mewn laserau topological a chymesuredd torri o ddulliau ymyl topolegol mewn lattice Su-Schrieffer-Heeger aflinol", seminar Peirianneg, Prifysgol Exeter, 27 Tach 2024
- "Delocalizing dulliau ymyl / cornel gan faes mesur dychmygol yn ynysyddion topolegol ffotonig 1D / 2D nad ydynt yn Hermitian a'u dynameg spatio-temporal ", PHHQP XXI, Χανιά, 25 Medi 2024
- "Symmetreg torri o ddulliau ymyl topolegol dyanmig mewn lattice Su-Schrieffer-Heeger", Cynhadledd Ryngwladol ar Quantum a Nonlinear Nanophotonics, Prifysgol Nottingham Trent, 29 Awst 2024
- "Llinellau nodal nad ydynt yn abelian a phontio cyfnod mewn ynysyddion topolegol ffotonig," Ffiseg Topolegol mewn gweithdy Mater Cyddwys, Prifysgol Caerdydd, 12 Ebrill 2024.
- "Dulliau ymylol topolegol a swmp lasing a'u diagramau cyfnod," Ffotoneg Topoleg a gweithdy Beyond Tianjin, Tsieina, 29 Ionawr 2024
- "Laserau topolegol a ffotoneg nad ydynt yn Hermitaidd," Seminar Ffiseg, Prifysgol Newcastle, 20 Hydref 2023.
- "nanowires lled-ddargludyddion ar gyfer laserau topolegol 1D a 2D," Sefydliad Ffiseg, Academi Gwyddoniaeth Tsieineaidd, Beijing, Tsieina, 17 Awst 2023.
- "Laserau topolegol a chysylltiadau Nodal mewn crisialau ffotonig," APRI (Advanced Photonics Research Institute), De Korea, 26 Hydref 2022.
- "laserau topolegol a chysylltiadau nodal mewn crisialau ffotoneg," Adran Ffiseg, KAIST (Sefydliad Gwyddoniaeth a Thechnoleg Uwch Corea), De Korea, 25 Hydref 2022.
- "Topoleg nad yw'n Abelaidd o gysylltiadau Nodal mewn crisialau ffotonig a systemau màs y gwanwyn," Prifysgol Ulsan, De Korea, 18 Hydref 2022.
- "Modelu Laserau Topolegol Lled-ddargludyddion," Bremen-Caerdydd cynghrair "Ffiseg lled-ddargludyddion" Gweithdy ar-lein, 24 Ionawr 2022.
- "Topoleg anAbelaidd Cysylltiadau Nodal mewn Crisialau Ffotoneg," Colocwiwm Peirianneg Drydanol, UNIST (Sefydliad Cenedlaethol Gwyddoniaeth a Thechnoleg Ulsan) (ar zoom), 24 Tachwedd 2021.
- "Rhyngweithio ysgafn mewn ynysyddion topolegol ffotonig," Prifysgol Fribourg a Sefydliad Merkel Adolphe (ar zoom), 24 Mehefin 2021.
- "Dylunio ynysydd topolegol ffotonig gan ddefnyddio dull parthau amser gwahaniaeth-gyfyngedig," seminar ymchwil ARCCA (Cyfrifiadura Ymchwil Uwch yng Nghaerdydd), Prifysgol Caerdydd, 7 Hydref 2020.
- "Laser ynysydd topolegol ffotonig gyda phelen nanowire lled-ddargludyddion MOCVD: modelu, ffugio a nodweddu," gweithdy Caerdydd-Bremen, Prifysgol Bremen, yr Almaen, 11-12 Gorffennaf. 2019.
- "Dulliau ymyl topolegol mewn crisialau ffotonig dellt kagome," CINAP-IBS, SKKU, S. Korea, 27 Mehefin 2019.
- "Dulliau ymyl topolegol mewn crisialau ffotonig dellt kagome," Gwahoddiad seminar, Prifysgol Ajou, S. Korea, S. Korea, 26 Mehefin 2019.
- "Dulliau ymyl topolegol mewn crisialau ffotonig dellt kagome," Seminar wahoddedig, KRISS, Daejeon, S. Korea, 19 Mehefin 2019.
- "Dulliau ymyl topolegol mewn crisialau ffotonig dellt kagome," gweithdy IBS: Datblygiadau Diweddar mewn Ffotoneg Topolegol, Daejeon, S. Korea, 17-21 Mehefin 2019. Dolen i'r dudalen.
- "ynysyddion topolegol ffotonig gyda Kagome Lattice," seminar grŵp ffiseg damcaniaethol, Prifysgol Bryste, Y Deyrnas Unedig, 6 Chwefror 2019. * Gwahoddiad gan yr Athro Michael Berry
- "Rhyngweithio Mater Ysgafn Chiral mewn ynysyddion topolegol Ffotonig Dielectrig," seminar gwahoddedig, seminar grŵp ffiseg damcaniaethol, Prifysgol Münster, yr Almaen, 7 Tach 2018.
- "Trydan Tunable Chirality a Golau Araf mewn Graphene Metamaterials," Gweithdy y Gymdeithas Ficrosgopig Frenhinol, Caerwysg, y DU, 3 Ebrill 2018.
- "Rheoli trydanol o chirality optegol ac ymateb nonlinear mewn metamateirals graphene," Gwahodd seminar, Adran Peirianneg Drydanol, KAIST, 1 Jul. 2016.
- "Moment deupol toroidal lleol o begynau plasmon wyneb spoof," Gwahodd seminar, Prifysgol Genedlaethol Kyungpook, De Korea, 27 Awst 2015.
- "Metamaterials Optegol Gweithredol: O golled-iawndal i fetamaterialsau chiral gweithredol," Gwahodd seminar, Prifysgol Korea yn Ne Korea, 24 Mehefin. 2014.
- "Metamaterials Optegol Gweithredol: O golled-iawndal i fetamaterialsau chiral gweithredol," Gwahodd seminar, Sefydliad Peiriannau a Deunyddiau Korea yn Ne Korea, 17 Mehefin. 2014.
- "Metamaterials Optegol Gweithredol: O golled-iawndal i fetamaterialsau chiral gweithredol," Gwahodd seminar, Sefydliad Ymchwil telathrebu Trydanol yn Ne Korea, 17 Mehefin. 2014.
- "Plygiant negyddol ac anweladwyedd cloaking mewn metamaterials," cyfarfod CIONS myfyriwr ôl-raddedig Corea (Caergrawnt, Imperial, Oxford Network with SPRU), Coleg Imperial Llundain, 26 Tachwedd 2011.
- "Mynegai plygiannol negyddol mewn metaddeunydd ciral helics 3D," Gwahodd seminar, Advanced Photonics Research Institute yn Ne Korea, 26 Hyd 2011.
Pwyllgorau ac adolygu
- Aelod, panel y bwrdd arholi (ers mis Ebrill 2024)
- Arholwr mewnol ar gyfer PhD vivas
- Cobi Maynard, Prifysgol Caerdydd, "Efelychu a Gweithgynhyrchu Ffotoneg Integredig Galliwm Nitride", Ionawr 2025
- Fwoziah Albeladi, Prifysgol Caerdydd, "Hyrwyddo Cylchedau Ffotonig Integredig: Dylunio, Gwneuthuriad a Nodweddu Cydrannau Ffotonig Allweddol", Gorffennaf 2024
- Martina Recchia, Prifysgol Caerdydd, "Synhwyro cemegol ar y nanoraddfa: Micro-sbectrosgopeg gwasgaru Raman cydlynol wedi'i wella yn y maes lleol ger nano-antena plasmonig", Mawrth 2024
- Sam Bishop, Prifysgol Caerdydd, "Ffynonellau Golau Cwantwm Tymheredd Ystafell III-Nitride", Rhagfyr 2022
- Sam Neale, Prifysgol Caerdydd, "Ehangu cyflwr cyseiniol ar gyfer systemau optegol agored cyfnodol", Mawrth 2021
- Arholwr allanol ar gyfer PhD vivas
- Cónal Murphy, Coleg Prifysgol Cork, "Efelychu rhagfynegol a dylunio heterostrwythurau III-V ar gyfer allyrru a chanfod golau", Mawrth 2025
- Aresenios Gisdakis, Prifysgol Birmingham, "Cyplu i donnau wyneb rhwymedig ac ymbelydredd lledaenu", Chwefror 2025
- Jingyi Wu, Coleg y Brenin Llundain, "Rheoli Golau gyda Metaddeunyddiau Nanorod Plasmonig", Rhagfyr 2024
- Jitong Wang, Coleg Prifysgol Llundain, "Ymchwiliad damcaniaethol a chyfrifiadurol i nanoddyfeisiau ffotonig gweithredol sy'n manteisio ar gyflyrau rhwymedig yn y continwwm", Mai 2024
- Wasem Aljuaid, Prifysgol Newcastle, "Manteisio ar strwythurau dielectrig mynegai uchel ar ffibrau optegol i gyflawni datrysiad gofodol uchel trwy nanojetiau ffotonig", Mawrth 2024
- Joshua Feis, Prifysgol Rhydychen, "Metamaterials Topolegol ar gyfer Cymwysiadau Peirianneg", Rhagfyr 2023
- Iago Rodriguez Diez, Prifysgol Caerwysg, "Dylunio Gwrthdro Nanolaserau Oriel Sibryd gyda Siâp a Polareiddio Trawst wedi'i Teilwra", Tachwedd 2022
- Sunae So, POSTECH, S. Korea, "Dyluniad gwrthdro o strwythurau a dyfeisiau nanoffotonig sy'n defnyddio deallusrwydd artiffisial", Rhagfyr 2021
- Rúben Azinheira Alvez, Prifysgol Birmingham, "Dull Ffurfioliaeth Madelung ar gyfer Nanoplamonics An-Leol", Tachwedd 2021
- Jack Kingsley-Smith, Coleg y Brenin Llundain, "Grymoedd optegol a torque ar gyfer levitation a thrin nanoronynnau ger arwynebau ac mewn trawstiau cymhleth", Awst 2021
Meysydd goruchwyliaeth
Mae gen i ddiddordeb mewn goruchwylio myfyrwyr PhD ym meysydd
- Ffiseg topolegol (ffotoneg, plasmoneg)
- electromagnetedd damcaniaethol (modelu dadansoddol a rhifiadol)
- Effeithiau aflinol a deinamig mewn laserau lled-ddargludyddion (anrhefn, effaith ennill nonuniform)
- Modelu eiddo optegol deunyddiau 2D
Ar hyn o bryd rwy'n goruchwylio 3 myfyriwr ymchwil fel prif oruchwyliwr (gweler isod) ac 1 myfyriwr (Amal Aldhubaib dan oruchwyliaeth Haiyao Deng) fel cydoruchwyliwr. Cyn fyfyrwyr PhD sy'n ymweld: Jochen Bissinger o Brifysgol Dechnegol Munich a Jan Olthaus o Brifysgol Münster.
Alumni
Cyn bostdocs:
- Dr Yongkang Gong (Huawei)
- Parc Dr Haedong (Corning Korea)
- Dr Ananya Ghatak (Prifysgol Creta)
Cyn fyfyrwyr PhD:
- Dr Stephan Wong (Labordy Cenedlaethol Sandia)
- Dr Zeeshan Ahmad (Bentham Instruments Ltd.)
- Dr Joe Mahoney (Intellectural Property Office)
- Dr Shaikhah Almousa (Prifysgol y Brenin Saud)
Goruchwyliaeth gyfredol
Prosiectau'r gorffennol
Prosiectau PGR Preivous
- Stephan Wong, Archwilio dulliau lasio topolegol nofel: eu cadernid a'u dynameg, 2018-2022
- Zeeshan Ahmad, polaritonau plasmon wyneb Trawsverse-drydanol mewn systemau graphene homogenaidd a chyfnodol,
2018-2022 - Joe Mahoney, Dylunio Modiwleiddwyr Eelectroabsorption Dot Quantum ar gyfer Data a Thelathrebu Next-Gen 2019-2023
- Shaikhah Almousa, Theori union a brasamcan ar gyfer atseinio mewn cyfrwng sy'n newid o'i gwmpas, 2019-2023
Prosiectau PGR cyfredol
- Ghada Alharbi, Anhwylder optegol mewn ynysyddion topolegol aflinol Kerr optegol 2020-2024
- Kyle Netherwood, Creu deunydd optegol artiffisial i hidlo taleithiau ffoton sengl ar gyfer technolegau cwantwm, 2023-2027
- Ion Wood-Thanan, Deunyddiau optegol cwantwm Cyfnodol 2023-2027 (dan oruchwyliaeth Felix Flicker yn U. o Fryste)
Contact Details
OhS2@caerdydd.ac.uk
+44 29225 10184
Y Ganolfan Ymchwil Drosiadol, Llawr 1, Ystafell 1.02, Heol Maindy, Cathays, Caerdydd, CF24 4HQ
Adeiladau'r Frenhines - Adeilad y Gogledd, Ystafell N/0.09, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA
+44 29225 10184
Y Ganolfan Ymchwil Drosiadol, Llawr 1, Ystafell 1.02, Heol Maindy, Cathays, Caerdydd, CF24 4HQ
Adeiladau'r Frenhines - Adeilad y Gogledd, Ystafell N/0.09, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA
Themâu ymchwil
Arbenigeddau
- Ffiseg mater cyddwysedig
- Nanoffotoneg
- Plasmonics
