![John Hadden](https://profiles-cardiff.imgix.net/attachments/3575?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr John Hadden
(e/fe)
- Ar gael fel goruchwyliwr ôl-raddedig
Timau a rolau for John Hadden
Darlithydd mewn Technolegau Cwantwm
Trosolwyg
Rwy'n ddarlithydd yn yr Ysgol Peirianneg ym Mhrifysgol Caerdydd. Mae fy ymchwil yn canolbwyntio ar nano-ffotoneg, opteg cwantwm, a thechnolegau synhwyro cwantwm yn seiliedig ar ganolfannau lliw allyrru ffoton sengl mewn deunyddiau lled-ddargludyddion llydan bandgap fel nitride gallium, diemwnt a deunyddiau 2D.
Mae mwy o wybodaeth ar gael ar ein tudalen we grŵp: qlabcardiff.co.uk
Anrhydeddau a gwobrau
- 2021-Generation Tech (CoI) - Cyllid Catalydd Allgymorth - Arloesi i Bawb, Cyllid Arloesi i Bawb gan Gyngor Cyllido Addysg Uwch Cymru (CCAUC).
- Rhwydwaith Hyfforddi Arloesol Gweithredoedd Marie Sklodowska-Curie 2020-Horizon 2019-presennol - 'Hyfforddiant ar Fabrication Laser a Mewnblannu Ion o ddiffygion fel allyrwyr cwantwm' - (Cyd-awdur ac Ymchwilydd Enwir). www.lasiondef.eu (LasIonDef).
- 2019-2022 Cymrodoriaeth Ôl-ddoethurol Cofund Sêr Cymru - 'NIQuED' - Nitride Dyfeisiau Allyrru Cwantwm Integredig - PI (2019).
- 2019-2020 (CoI) EPSRC ECR Offer Sefydliadol - 'System nodweddu Micro-Raman i bennu cyfansoddiad elfennol deunyddiau newydd'.
- 2019-2020 (PI) Horizon 2020 Marie Sklodowska-Curie Actions Seal of Excellence.
Achrediad/aelodaeth cyrff proffesiynol
- Cymrawd yr Academi Addysg Uwch (FHEA)
- Aelod o'r Sefydliad Ffiseg (MInstP)
Allgymorth
- Gweld Ffotonau Sengl - Arbrawf arddangos ffotoneg cwantwm ar gyfer allgymorth yng Ngŵyl Wyddoniaeth Caerdydd 2023 a 2024 - 'Yr Amgueddfa Ar Ôl Tywyllwch'
- Generation Tech - Datblygu gweithdy ysgolion i gyflwyno agweddau ar dechnoleg lled-ddargludyddion cyfansawdd a'u cymhwyso i ddatrys problemau'r byd go iawn. CoI, ymgynghorydd gwyddonol a gwirfoddolwr.
- Rhaglen Llysgenhadon STEM - Gwirfoddoli mewn digwyddiadau gŵyl wyddoniaeth Caerdydd fel 'The Museum After Dark', Science Busking, allgymorth ar-lein fel 'Rwy'n wyddonydd STAY AT HOME' a llysgenhadon STEM ar-lein Brightside mentora.
Cyhoeddiad
2025
- Shahbazi, S. et al. 2025. Vector magnetometry using shallow implanted NV centers in diamond with waveguide-assisted dipole excitation and readout. APL Photonics 10(2), article number: 21301. (10.1063/5.0231203)
2024
- Clark, R. N., Bishop, S. G., Cannon, J. K., Hadden, J. P., Dolan, P. R., Sinclair, A. G. and Bennett, A. J. 2024. Measuring photon correlation using imperfect detectors. Physical Review Applied 22(6), article number: 64067. (10.1103/PhysRevApplied.22.064067)
- Yağcı, H. et al. 2024. Tracking the creation of single photon emitters in AlN by implantation and annealing. Optical Materials 156, article number: 115967. (10.1016/j.optmat.2024.115967)
- Alam, M. S. et al. 2024. Determining strain components in a diamond waveguide from zero-field optically detected magnetic resonance spectra of negatively charged nitrogen-vacancy-center ensembles. Physical Review Applied 22(2), article number: 24055. (10.1103/PhysRevApplied.22.024055)
- Guo, Y., Hadden, J. P., Clark, R. N., Bishop, S. G. and Bennett, A. J. 2024. Emission dynamics of optically driven aluminum nitride quantum emitters. Physical Review B 110, article number: 14109. (10.1103/PhysRevB.110.014109)
- Guo, Y. et al. 2024. Laser-written waveguide-integrated coherent spins in diamond. APL Photonics 9(7), article number: 76103. (10.1063/5.0209294)
- Cannon, J. K. et al. 2024. Room temperature quantum emitters in aluminum nitride epilayers on silicon. Applied Physics Letters 124(24), article number: 244001. (10.1063/5.0207744)
- Nieto Hernández, E. et al. 2024. Fabrication of quantum emitters in aluminum nitride by Al-ion implantation and thermal annealing. Applied Physics Letters 124(12), article number: 124003. (10.1063/5.0185534)
- Masuda, T., Hadden, J., Lake, D., Mitchell, M., Flågan, S. and Barclay, P. 2024. Fiber-taper collected emission from NV centers in high-Q/V diamond microdisks. Optics Express 32(5), pp. 8172-8188. (10.1364/OE.507325)
- Lutz, T., Masuda, T., Hadden, J. P., Fescenko, I., Acosta, V. M., Tittel, W. and Barclay, P. E. 2024. Effect of the nanopillar diameter on diamond silicon vacancy center spin lifetime. Optical Materials Express 14(1), pp. 226-235. (10.1364/OME.503513)
2023
- Maynard, C., Beggs, D., Wale, M., Bennett, A. and Hadden, J. P. 2023. Suspended triangular waveguides and serrated photonic crystal nanobeam cavities. Presented at: 2023 Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, United States, 07-12 May 2023Proceedings 2023 Conference on Lasers and Electro-Optics (CLEO). IEEE pp. 1-2., (10.1364/CLEO_AT.2023.JW2A.143)
- Cannon, J. K., Bishop, S. G., Guo, Y., Yagci, H. B., Clark, R. N., Hadden, J. P. and Bennett, A. J. 2023. Colour centres in aluminium nitride are bright, room-temperature quantum light sources. Presented at: 23rd International Conference on Transparent Optical Networks ICTON 2023, Bucharest, Romania, 2-6 July 2023 Presented at Jaworski, M. and Marciniak, M. eds.Proceedings of 23rd International Conference on Transparent Optical Networks. pp. 1-2., (10.1109/ICTON59386.2023.10207363)
- Cannon, J. K., Bishop, S. G., Hadden, J. P., Yagci, H. B. and Bennett, A. J. 2023. Polarization study of single color centers in aluminum nitride. Applied Physics Letters 122(17), article number: 172104. (10.1063/5.0145542)
- Hekmati, R., Hadden, J. P., Mathew, A., Bishop, S. G., Lynch, S. A. and Bennett, A. J. 2023. Bullseye dielectric cavities for photon collection from a surface-mounted quantum-light-emitter. Scientific Reports 13(1), article number: 5316. (10.1038/s41598-023-32359-0)
2022
- Bishop, S. G., Cannon, J. K., Yağcı, H. B., Clark, R. N., Hadden, J. P., Langbein, W. and Bennett, A. J. 2022. Evanescent-field assisted photon collection from quantum emitters under a solid immersion lens. New Journal of Physics 24, article number: 103027. (10.1088/1367-2630/ac9697)
- Hadden, J. P., Maynard, C., Beggs, D. M., Taylor, R. A. and Bennett, A. J. 2022. Design of free-space couplers for suspended triangular nano-beam waveguides. Journal of Physics D: Applied Physics 55(47), article number: 474002. (10.1088/1361-6463/ac941e)
- Koch, M. K. et al. 2022. Super-poissonian light statistics from individual silicon vacancy centers coupled to a laser-written diamond waveguide. ACS Photonics 9(10), pp. 3366-3373. (10.1021/acsphotonics.2c00774)
- Bishop, S. G., Hadden, J. P., Hekmati, R., Cannon, J. K., Langbein, W. W. and Bennett, A. 2022. Enhanced light collection from a gallium nitride color center using a near index-matched solid immersion lens. Applied Physics Letters 120, article number: 114001. (10.1063/5.0085257)
- Giakoumaki, A. N. et al. 2022. Quantum technologies in diamond enabled by laser processing. Applied Physics Letters 120(2), article number: 20502. (10.1063/5.0080348)
2021
- Koch, M. K. et al. 2021. On-chip single-photon subtraction by individual silicon vacancy centers in a laser-written diamond waveguide. [Online]. Cornell University. Available at: https://arxiv.org/abs/2111.01699
- Hoese, M. et al. 2021. Integrated magnetometry platform with stackable waveguide-assisted detection channels for sensing arrays. Physical Review Applied 15(5), article number: 54059. (10.1103/PhysRevApplied.15.054059)
2020
- Bishop, S., Hadden, J., Alzahrani, F., Hekmati, R., Huffaker, D., Langbein, W. and Bennett, A. 2020. Room-temperature quantum emitter in aluminum nitride. ACS Photonics 7(7), pp. 1636-1641. (10.1021/acsphotonics.0c00528)
- Knauer, S., Hadden, J. P. and Rarity, J. G. 2020. In-situ measurements of fabrication induced strain in diamond photonic-structures using intrinsic colour centres. npj Quantum Information 6(1), article number: 50. (10.1038/s41534-020-0277-1)
2019
- Eaton, S. M. et al. 2019. Quantum micro–nano devices fabricated in diamond by femtosecond laser and ion irradiation. Advanced Quantum Technologies 2(5-6), article number: 1900006. (10.1002/qute.201900006)
- Bharadwaj, V. et al. 2019. Femtosecond laser written photonic and microfluidic circuits in diamond. Journal of Physics: Photonics 1(2), article number: 22001. (10.1088/2515-7647/ab0c4e)
2018
- Ortiz-Huerta, F., Chen, L., Taverne, M., Hadden, J., Johnson, M., Ho, Y. L. D. and Rarity, J. G. 2018. Fabrication of hybrid Fabry-Pérot microcavity using two-photon lithography for single-photon sources. Optics Express 26(25), pp. 33245. (10.1364/OE.26.033245)
- Hadden, J. P. et al. 2018. Integrated waveguides and deterministically positioned nitrogen vacancy centers in diamond created by femtosecond laser writing. Optics Letters 43(15), pp. 3586-3589. (10.1364/OL.43.003586)
- Sotillo, B. et al. 2018. Polarized micro-Raman studies of femtosecond laser written stress-induced optical waveguides in diamond. Applied Physics Letters 112(3), article number: 31109. (10.1063/1.5017108)
2017
- Lake, D. P., Mitchell, M., Hadden, J. P. and Barclay, P. E. 2017. Optomechanically induced transparency in diamond microdisks. Presented at: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25-29 June 20172017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, (10.1109/CLEOE-EQEC.2017.8087082)
- Sotillo, B. et al. 2017. Femtosecond laser processing for single NV-waveguide integration in diamond. Presented at: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25-29 June 20172017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC. IEEE, (10.1109/CLEOE-EQEC.2017.8087836)
- Hadden, J. et al. 2017. Bulk diamond optical waveguides fabricated by focused femtosecond laser pulses. Presented at: SPIE LASE, 2017, San Francisco, CAL, 2018Laser 3D Manufacturing IV, Vol. 10095. SPIE Proceedings Bellingham, WA: Society of Photo-Optical Instrumentation Engineers (SPIE), (10.1117/12.2258062)
- Sotillo, B. et al. 2017. Visible to infrared diamond photonics enabled by focused femtosecond laser pulses. Micromachines 8(2), article number: 60. (10.3390/mi8020060)
- Masuda, T. et al. 2017. High-Q diamond microdisks for coupling to SiV quantum emitters. Presented at: CLEO: Applications and Technology 2017, San Jose, CAL, 14–19 May 2017CLEO: Applications and Technology 2017. Washington, D.C.: OSA Publishing, (10.1364/CLEO_AT.2017.JTh3E.2)
2016
- Sotillo, B. et al. 2016. Diamond photonics platform enabled by femtosecond laser writing. Scientific Reports- Faculty of Agriculture Okayama University 6, article number: 35566. (10.1038/srep35566)
- Mitchell, M., Khanaliloo, B., Lake, D. P., Masuda, T., Hadden, J. P. and Barclay, P. E. 2016. Single-crystal diamond low-dissipation cavity optomechanics. Optica 3(9), pp. 963-970.
- Khanaliloo, B. et al. 2016. High-quality single-crystal diamond nanophotonic and nanomechanical resonators. SPIE Newsroom (10.1117/2.1201601.006303)
- Mitchell, M., Khanaliloo, B., Lake, D. P., Masuda, T., Hadden, J. P. and Barclay, P. 2016. Diamond microdisk cavity optomechanics. Presented at: CLEO: Science and Innovations 2016 Conference on Lasers and Electro-Optics, San Jose, California, 5–10 June 2016OSA Technical Digest (2016) (Optical Society of America, 2016). Optical Society of America pp. STu4E.3., (10.1364/CLEO_SI.2016.STu4E.3)
- Eaton, S. M. et al. 2016. Femtosecond laser written photonic circuits in diamond for quantum information. Presented at: 2016 18th International Conference on Transparent Optical Networks (ICTON), Trento, 10-14 July 201618th International Conference on Transparent Optical Networks (ICTON). IEEE, (10.1109/ICTON.2016.7550522)
2013
- Kennard, J. E. et al. 2013. On-chip manipulation of single photons from a diamond defect. Physical Review Letters 111(21), article number: 213603. (10.1103/PhysRevLett.111.213603)
2012
- Wildanger, D. et al. 2012. Solid immersion facilitates fluorescence microscopy with nanometer resolution and sub-ångström emitter localization. Advanced Materials 24(44), pp. OP309-OP313. (10.1002/adma.201203033)
2011
- Marseglia, L. et al. 2011. Nanofabricated solid immersion lenses registered to single emitters in diamond. Applied Physics Letters 98(13), article number: 133107. (10.1063/1.3573870)
- Castelletto, S. et al. 2011. Diamond-based structures to collect and guide light. New Journal of Physics 13(2), article number: 25020. (10.1088/1367-2630/13/2/025020)
2010
- Hadden, J. P. et al. 2010. Strongly enhanced photon collection from diamond defect centers under microfabricated integrated solid immersion lenses. Applied Physics Letters 97(24), article number: 241901. (10.1063/1.3519847)
- Bonneau, D. et al. 2010. Integrated quantum photonics. Presented at: 23rd Annual Meeting of the IEEE Photonics Society, Denver, Colerado, 7-11 November 20102010 23rd Annual Meeting of the IEEE Photonics Society. IEEE pp. 542., (10.1109/PHOTONICS.2010.5699001)
- Marseglia, L. et al. 2010. Photonic crystal defect cavities coupled to N-V centres in diamond. Presented at: 36th European Conference and Exhibition on Optical Communication, Torino, 19-23 September 2010Proceedings of 36th European Conference and Exhibition on Optical Communication. IEEE, (10.1109/ECOC.2010.5621252)
Articles
- Shahbazi, S. et al. 2025. Vector magnetometry using shallow implanted NV centers in diamond with waveguide-assisted dipole excitation and readout. APL Photonics 10(2), article number: 21301. (10.1063/5.0231203)
- Clark, R. N., Bishop, S. G., Cannon, J. K., Hadden, J. P., Dolan, P. R., Sinclair, A. G. and Bennett, A. J. 2024. Measuring photon correlation using imperfect detectors. Physical Review Applied 22(6), article number: 64067. (10.1103/PhysRevApplied.22.064067)
- Yağcı, H. et al. 2024. Tracking the creation of single photon emitters in AlN by implantation and annealing. Optical Materials 156, article number: 115967. (10.1016/j.optmat.2024.115967)
- Alam, M. S. et al. 2024. Determining strain components in a diamond waveguide from zero-field optically detected magnetic resonance spectra of negatively charged nitrogen-vacancy-center ensembles. Physical Review Applied 22(2), article number: 24055. (10.1103/PhysRevApplied.22.024055)
- Guo, Y., Hadden, J. P., Clark, R. N., Bishop, S. G. and Bennett, A. J. 2024. Emission dynamics of optically driven aluminum nitride quantum emitters. Physical Review B 110, article number: 14109. (10.1103/PhysRevB.110.014109)
- Guo, Y. et al. 2024. Laser-written waveguide-integrated coherent spins in diamond. APL Photonics 9(7), article number: 76103. (10.1063/5.0209294)
- Cannon, J. K. et al. 2024. Room temperature quantum emitters in aluminum nitride epilayers on silicon. Applied Physics Letters 124(24), article number: 244001. (10.1063/5.0207744)
- Nieto Hernández, E. et al. 2024. Fabrication of quantum emitters in aluminum nitride by Al-ion implantation and thermal annealing. Applied Physics Letters 124(12), article number: 124003. (10.1063/5.0185534)
- Masuda, T., Hadden, J., Lake, D., Mitchell, M., Flågan, S. and Barclay, P. 2024. Fiber-taper collected emission from NV centers in high-Q/V diamond microdisks. Optics Express 32(5), pp. 8172-8188. (10.1364/OE.507325)
- Lutz, T., Masuda, T., Hadden, J. P., Fescenko, I., Acosta, V. M., Tittel, W. and Barclay, P. E. 2024. Effect of the nanopillar diameter on diamond silicon vacancy center spin lifetime. Optical Materials Express 14(1), pp. 226-235. (10.1364/OME.503513)
- Cannon, J. K., Bishop, S. G., Hadden, J. P., Yagci, H. B. and Bennett, A. J. 2023. Polarization study of single color centers in aluminum nitride. Applied Physics Letters 122(17), article number: 172104. (10.1063/5.0145542)
- Hekmati, R., Hadden, J. P., Mathew, A., Bishop, S. G., Lynch, S. A. and Bennett, A. J. 2023. Bullseye dielectric cavities for photon collection from a surface-mounted quantum-light-emitter. Scientific Reports 13(1), article number: 5316. (10.1038/s41598-023-32359-0)
- Bishop, S. G., Cannon, J. K., Yağcı, H. B., Clark, R. N., Hadden, J. P., Langbein, W. and Bennett, A. J. 2022. Evanescent-field assisted photon collection from quantum emitters under a solid immersion lens. New Journal of Physics 24, article number: 103027. (10.1088/1367-2630/ac9697)
- Hadden, J. P., Maynard, C., Beggs, D. M., Taylor, R. A. and Bennett, A. J. 2022. Design of free-space couplers for suspended triangular nano-beam waveguides. Journal of Physics D: Applied Physics 55(47), article number: 474002. (10.1088/1361-6463/ac941e)
- Koch, M. K. et al. 2022. Super-poissonian light statistics from individual silicon vacancy centers coupled to a laser-written diamond waveguide. ACS Photonics 9(10), pp. 3366-3373. (10.1021/acsphotonics.2c00774)
- Bishop, S. G., Hadden, J. P., Hekmati, R., Cannon, J. K., Langbein, W. W. and Bennett, A. 2022. Enhanced light collection from a gallium nitride color center using a near index-matched solid immersion lens. Applied Physics Letters 120, article number: 114001. (10.1063/5.0085257)
- Giakoumaki, A. N. et al. 2022. Quantum technologies in diamond enabled by laser processing. Applied Physics Letters 120(2), article number: 20502. (10.1063/5.0080348)
- Hoese, M. et al. 2021. Integrated magnetometry platform with stackable waveguide-assisted detection channels for sensing arrays. Physical Review Applied 15(5), article number: 54059. (10.1103/PhysRevApplied.15.054059)
- Bishop, S., Hadden, J., Alzahrani, F., Hekmati, R., Huffaker, D., Langbein, W. and Bennett, A. 2020. Room-temperature quantum emitter in aluminum nitride. ACS Photonics 7(7), pp. 1636-1641. (10.1021/acsphotonics.0c00528)
- Knauer, S., Hadden, J. P. and Rarity, J. G. 2020. In-situ measurements of fabrication induced strain in diamond photonic-structures using intrinsic colour centres. npj Quantum Information 6(1), article number: 50. (10.1038/s41534-020-0277-1)
- Eaton, S. M. et al. 2019. Quantum micro–nano devices fabricated in diamond by femtosecond laser and ion irradiation. Advanced Quantum Technologies 2(5-6), article number: 1900006. (10.1002/qute.201900006)
- Bharadwaj, V. et al. 2019. Femtosecond laser written photonic and microfluidic circuits in diamond. Journal of Physics: Photonics 1(2), article number: 22001. (10.1088/2515-7647/ab0c4e)
- Ortiz-Huerta, F., Chen, L., Taverne, M., Hadden, J., Johnson, M., Ho, Y. L. D. and Rarity, J. G. 2018. Fabrication of hybrid Fabry-Pérot microcavity using two-photon lithography for single-photon sources. Optics Express 26(25), pp. 33245. (10.1364/OE.26.033245)
- Hadden, J. P. et al. 2018. Integrated waveguides and deterministically positioned nitrogen vacancy centers in diamond created by femtosecond laser writing. Optics Letters 43(15), pp. 3586-3589. (10.1364/OL.43.003586)
- Sotillo, B. et al. 2018. Polarized micro-Raman studies of femtosecond laser written stress-induced optical waveguides in diamond. Applied Physics Letters 112(3), article number: 31109. (10.1063/1.5017108)
- Sotillo, B. et al. 2017. Visible to infrared diamond photonics enabled by focused femtosecond laser pulses. Micromachines 8(2), article number: 60. (10.3390/mi8020060)
- Sotillo, B. et al. 2016. Diamond photonics platform enabled by femtosecond laser writing. Scientific Reports- Faculty of Agriculture Okayama University 6, article number: 35566. (10.1038/srep35566)
- Mitchell, M., Khanaliloo, B., Lake, D. P., Masuda, T., Hadden, J. P. and Barclay, P. E. 2016. Single-crystal diamond low-dissipation cavity optomechanics. Optica 3(9), pp. 963-970.
- Khanaliloo, B. et al. 2016. High-quality single-crystal diamond nanophotonic and nanomechanical resonators. SPIE Newsroom (10.1117/2.1201601.006303)
- Kennard, J. E. et al. 2013. On-chip manipulation of single photons from a diamond defect. Physical Review Letters 111(21), article number: 213603. (10.1103/PhysRevLett.111.213603)
- Wildanger, D. et al. 2012. Solid immersion facilitates fluorescence microscopy with nanometer resolution and sub-ångström emitter localization. Advanced Materials 24(44), pp. OP309-OP313. (10.1002/adma.201203033)
- Marseglia, L. et al. 2011. Nanofabricated solid immersion lenses registered to single emitters in diamond. Applied Physics Letters 98(13), article number: 133107. (10.1063/1.3573870)
- Castelletto, S. et al. 2011. Diamond-based structures to collect and guide light. New Journal of Physics 13(2), article number: 25020. (10.1088/1367-2630/13/2/025020)
- Hadden, J. P. et al. 2010. Strongly enhanced photon collection from diamond defect centers under microfabricated integrated solid immersion lenses. Applied Physics Letters 97(24), article number: 241901. (10.1063/1.3519847)
Conferences
- Maynard, C., Beggs, D., Wale, M., Bennett, A. and Hadden, J. P. 2023. Suspended triangular waveguides and serrated photonic crystal nanobeam cavities. Presented at: 2023 Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, United States, 07-12 May 2023Proceedings 2023 Conference on Lasers and Electro-Optics (CLEO). IEEE pp. 1-2., (10.1364/CLEO_AT.2023.JW2A.143)
- Cannon, J. K., Bishop, S. G., Guo, Y., Yagci, H. B., Clark, R. N., Hadden, J. P. and Bennett, A. J. 2023. Colour centres in aluminium nitride are bright, room-temperature quantum light sources. Presented at: 23rd International Conference on Transparent Optical Networks ICTON 2023, Bucharest, Romania, 2-6 July 2023 Presented at Jaworski, M. and Marciniak, M. eds.Proceedings of 23rd International Conference on Transparent Optical Networks. pp. 1-2., (10.1109/ICTON59386.2023.10207363)
- Lake, D. P., Mitchell, M., Hadden, J. P. and Barclay, P. E. 2017. Optomechanically induced transparency in diamond microdisks. Presented at: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25-29 June 20172017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, (10.1109/CLEOE-EQEC.2017.8087082)
- Sotillo, B. et al. 2017. Femtosecond laser processing for single NV-waveguide integration in diamond. Presented at: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25-29 June 20172017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC. IEEE, (10.1109/CLEOE-EQEC.2017.8087836)
- Hadden, J. et al. 2017. Bulk diamond optical waveguides fabricated by focused femtosecond laser pulses. Presented at: SPIE LASE, 2017, San Francisco, CAL, 2018Laser 3D Manufacturing IV, Vol. 10095. SPIE Proceedings Bellingham, WA: Society of Photo-Optical Instrumentation Engineers (SPIE), (10.1117/12.2258062)
- Masuda, T. et al. 2017. High-Q diamond microdisks for coupling to SiV quantum emitters. Presented at: CLEO: Applications and Technology 2017, San Jose, CAL, 14–19 May 2017CLEO: Applications and Technology 2017. Washington, D.C.: OSA Publishing, (10.1364/CLEO_AT.2017.JTh3E.2)
- Mitchell, M., Khanaliloo, B., Lake, D. P., Masuda, T., Hadden, J. P. and Barclay, P. 2016. Diamond microdisk cavity optomechanics. Presented at: CLEO: Science and Innovations 2016 Conference on Lasers and Electro-Optics, San Jose, California, 5–10 June 2016OSA Technical Digest (2016) (Optical Society of America, 2016). Optical Society of America pp. STu4E.3., (10.1364/CLEO_SI.2016.STu4E.3)
- Eaton, S. M. et al. 2016. Femtosecond laser written photonic circuits in diamond for quantum information. Presented at: 2016 18th International Conference on Transparent Optical Networks (ICTON), Trento, 10-14 July 201618th International Conference on Transparent Optical Networks (ICTON). IEEE, (10.1109/ICTON.2016.7550522)
- Bonneau, D. et al. 2010. Integrated quantum photonics. Presented at: 23rd Annual Meeting of the IEEE Photonics Society, Denver, Colerado, 7-11 November 20102010 23rd Annual Meeting of the IEEE Photonics Society. IEEE pp. 542., (10.1109/PHOTONICS.2010.5699001)
- Marseglia, L. et al. 2010. Photonic crystal defect cavities coupled to N-V centres in diamond. Presented at: 36th European Conference and Exhibition on Optical Communication, Torino, 19-23 September 2010Proceedings of 36th European Conference and Exhibition on Optical Communication. IEEE, (10.1109/ECOC.2010.5621252)
Websites
- Koch, M. K. et al. 2021. On-chip single-photon subtraction by individual silicon vacancy centers in a laser-written diamond waveguide. [Online]. Cornell University. Available at: https://arxiv.org/abs/2111.01699
- Yağcı, H. et al. 2024. Tracking the creation of single photon emitters in AlN by implantation and annealing. Optical Materials 156, article number: 115967. (10.1016/j.optmat.2024.115967)
- Guo, Y., Hadden, J. P., Clark, R. N., Bishop, S. G. and Bennett, A. J. 2024. Emission dynamics of optically driven aluminum nitride quantum emitters. Physical Review B 110, article number: 14109. (10.1103/PhysRevB.110.014109)
- Guo, Y. et al. 2024. Laser-written waveguide-integrated coherent spins in diamond. APL Photonics 9(7), article number: 76103. (10.1063/5.0209294)
- Nieto Hernández, E. et al. 2024. Fabrication of quantum emitters in aluminum nitride by Al-ion implantation and thermal annealing. Applied Physics Letters 124(12), article number: 124003. (10.1063/5.0185534)
- Masuda, T., Hadden, J., Lake, D., Mitchell, M., Flågan, S. and Barclay, P. 2024. Fiber-taper collected emission from NV centers in high-Q/V diamond microdisks. Optics Express 32(5), pp. 8172-8188. (10.1364/OE.507325)
- Lutz, T., Masuda, T., Hadden, J. P., Fescenko, I., Acosta, V. M., Tittel, W. and Barclay, P. E. 2024. Effect of the nanopillar diameter on diamond silicon vacancy center spin lifetime. Optical Materials Express 14(1), pp. 226-235. (10.1364/OME.503513)
- Cannon, J. K., Bishop, S. G., Hadden, J. P., Yagci, H. B. and Bennett, A. J. 2023. Polarization study of single color centers in aluminum nitride. Applied Physics Letters 122(17), article number: 172104. (10.1063/5.0145542)
- Hekmati, R., Hadden, J. P., Mathew, A., Bishop, S. G., Lynch, S. A. and Bennett, A. J. 2023. Bullseye dielectric cavities for photon collection from a surface-mounted quantum-light-emitter. Scientific Reports 13(1), article number: 5316. (10.1038/s41598-023-32359-0)
- Hadden, J. P., Maynard, C., Beggs, D. M., Taylor, R. A. and Bennett, A. J. 2022. Design of free-space couplers for suspended triangular nano-beam waveguides. Journal of Physics D: Applied Physics 55(47), article number: 474002. (10.1088/1361-6463/ac941e)
- Bishop, S. G., Hadden, J. P., Hekmati, R., Cannon, J. K., Langbein, W. W. and Bennett, A. 2022. Enhanced light collection from a gallium nitride color center using a near index-matched solid immersion lens. Applied Physics Letters 120, article number: 114001. (10.1063/5.0085257)
- Giakoumaki, A. N. et al. 2022. Quantum technologies in diamond enabled by laser processing. Applied Physics Letters 120(2), article number: 20502. (10.1063/5.0080348)
- Hoese, M. et al. 2021. Integrated magnetometry platform with stackable waveguide-assisted detection channels for sensing arrays. Physical Review Applied 15(5), article number: 54059. (10.1103/PhysRevApplied.15.054059)
- Bishop, S., Hadden, J., Alzahrani, F., Hekmati, R., Huffaker, D., Langbein, W. and Bennett, A. 2020. Room-temperature quantum emitter in aluminum nitride. ACS Photonics 7(7), pp. 1636-1641. (10.1021/acsphotonics.0c00528)
- Eaton, S. M. et al. 2019. Quantum micro–nano devices fabricated in diamond by femtosecond laser and ion irradiation. Advanced Quantum Technologies 2(5-6), article number: 1900006. (10.1002/qute.201900006)
- Bharadwaj, V. et al. 2019. Femtosecond laser written photonic and microfluidic circuits in diamond. Journal of Physics: Photonics 1(2), article number: 22001. (10.1088/2515-7647/ab0c4e)
- Hadden, J. P. et al. 2018. Integrated waveguides and deterministically positioned nitrogen vacancy centers in diamond created by femtosecond laser writing. Optics Letters 43(15), pp. 3586-3589. (10.1364/OL.43.003586)
- Sotillo, B. et al. 2016. Diamond photonics platform enabled by femtosecond laser writing. Scientific Reports- Faculty of Agriculture Okayama University 6, article number: 35566. (10.1038/srep35566)
- Mitchell, M., Khanaliloo, B., Lake, D. P., Masuda, T., Hadden, J. P. and Barclay, P. E. 2016. Single-crystal diamond low-dissipation cavity optomechanics. Optica 3(9), pp. 963-970.
- Hadden, J. P. et al. 2010. Strongly enhanced photon collection from diamond defect centers under microfabricated integrated solid immersion lenses. Applied Physics Letters 97(24), article number: 241901. (10.1063/1.3519847)
Ymchwil
Mae fy niddordebau ymchwil cyfredol yn ymchwilio a datblygu canolfannau lliw allyrru ffoton sengl ar gyfer cymwysiadau cyfathrebu a synhwyro mewn lled-ddargludyddion cyfansawdd llydan bwlch band gyda galluoedd twf a phrosesu aeddfed fel nitride gallium.
Mae fy ngwaith blaenorol wedi canolbwyntio ar ddatblygu canolfannau lliw mewn diemwnt fel adnoddau technoleg cwantwm ffotonig fel allyrwyr cwantwm ffoton sengl a soled cyflwr solet ar gyfer gwybodaeth cwantwm. Roedd hyn yn cynnwys cyplysu canolfannau lliw Swydd Wag Nitrogen (NV) neu Swydd Silicon Wag (SiV) i strwythurau ffotonig fel pelydr ïon ffocws (FIB) melino lensys trochi solet i wella effeithlonrwydd casglu ffotonau (APL, APL, 97, 24, 241901, 2010), cyseinyddion microdisk modd oriel sibrwd ar gyfer optomecaneg ceudod (Optica, 3, 9, 963. 2016), a waveguides ysgrifenedig laser femtosecond i arwain a chasglu golau a allyrrir (Llythyrau Opteg, 43, 15, 3586 2018).
Mae mwy o wybodaeth ar gael ar ein tudalen we grŵp: qlabcardiff.co.uk
Addysgu
Swyddi Academaidd:
- Tiwtor Blwyddyn 1 (2022/23)
- Tiwtor Blwyddyn 3 (2023-presennol)
- Tiwtor Rhaglen Peirianneg Integredig (2023-Cyfredol)
Modiwlau Israddedig:
- Sylfaen: Cyflwyniad i Fecaneg (2022-Cyfredol)
- Blwyddyn 2: Prosiect Dylunio Grŵp (2023-Cyfredol)
- Blwyddyn 2: Dylunio Prosiect Integredig (2023-Cyfredol)
- Blwyddyn 3: Prosiect Peirianneg Unigol y Flwyddyn Olaf (2022-presennol)
Datblygiad Proffesiynol Parhaus:
- CS Cysylltiedig: Cyflwyniad i Electroneg Lled-ddargludyddion Cyfansawdd (2022-Cyfredol)
Bywgraffiad
Ar ôl cwblhau MSci mewn Mathemateg a Ffiseg ym Mhrifysgol Bryste, ymunais â'r Ganolfan Ffotoneg Cwantwm gyda'r Athro Jeremy O'Brien a John Rarity, gan gwblhau PhD ar "Strwythurau a Thechnegau Ffotonig ar gyfer Mesur Gwell Qubits Spin mewn Diamond". Wedi hynny deuthum yn Gymrawd Ôl-ddoethurol Uchel Llygaid yng ngrŵp yr Athro Paul Barclay yn y Sefydliad Gwyddoniaeth a Thechnoleg Cwantwm ym Mhrifysgol Calgary. Ymunodd â Phrifysgol Caerdydd yn 2018, gan weithio gyda'r Athro Anthony Bennett a'r Athro Diana Huffaker ac ennill cymrodoriaeth ôl-ddoethurol Sêr Cymru a ariennir gan Lywodraeth Cymru i gefnogi fy ngwaith ar allyrwyr cwantwm mewn lled-ddargludyddion llydanfyl.
Yn 2022, deuthum yn ddarlithydd yn yr Ysgol Peirianneg ym Mhrifysgol Caerdydd. Mae fy ymchwil yn canolbwyntio ar nano-ffotoneg, opteg cwantwm, a thechnolegau synhwyro cwantwm yn seiliedig ar ganolfannau lliw allyrru ffoton sengl mewn deunyddiau lled-ddargludyddion llydan bandgap fel nitride gallium, diemwnt a deunyddiau 2D.
Mae mwy o wybodaeth ar gael ar ein tudalen we grŵp: qlabcardiff.co.uk
Anrhydeddau a dyfarniadau
- 2021-Generation Tech (CoI) - Cyllid Catalydd Allgymorth - Arloesi i Bawb, Cyllid Arloesi i Bawb gan Gyngor Cyllido Addysg Uwch Cymru (CCAUC).
- Rhwydwaith Hyfforddiant Arloesol Gweithredoedd Marie Sklodowska-Curie 2020-Horizon 2019-presennol - 'Hyfforddiant ar Fabrication Laser a Mewnblannu Ion o ddiffygion fel allyrwyr cwantwm' - (Cyd-awdur ac Ymchwilydd a Enwyd yn Ymchwilydd). www.lasiondef.eu (LasIonDef).
- 2019-2022 Cymrodoriaeth Ôl-ddoethurol Cofund Sêr Cymru - 'NIQuED' - Nitride Dyfeisiau Allyrru Cwantwm Integredig - PI (2019).
- 2019-2020 (CoI) EPSRC ECR Offer Sefydliadol - 'System nodweddu Micro-Raman i bennu cyfansoddiad elfennol deunyddiau newydd'.
- 2019-2020 (PI) Horizon 2020 Marie Sklodowska-Curie Actions Seal of Excellence.
Aelodaethau proffesiynol
- 2015 - Sefydliad Ffiseg
- 2021 - Pwyllgor grŵp optegol - Aelod cyffredin, Ysgrifennydd Dros Dro.
- 2020-2021 - Cymdeithas Optegol America (Optica)
Safleoedd academaidd blaenorol
- 2022 - Darlithydd Presennol mewn Technolegau Cwantwm, Ysgol Peirianneg, Prifysgol Caerdydd.
- 2018 - 2022 Cydymaith Ymchwil Ôl-ddoethurol/Cymrawd Ôl-ddoethurol Sêr Cymru, Ysgol Ffiseg a Seryddiaeth, Prifysgol Caerdydd.
- 2015 - 2018 Llygaid Cymrawd Ôl-ddoethurol Uchel, Sefydliad Gwyddoniaeth a Thechnoleg Cwantwm, Prifysgol Calgary.
- 2013 - 2014 Cynorthwy-ydd Posdoethurol, Canolfan Ffotoneg Cwantwm, Ysgol Ffiseg, Prifysgol Bryste.
- 2008 - 2013 Myfyriwr PhD, Canolfan Ffotoneg Cwantwm, Ysgol Ffiseg, Prifysgol Bryste.
Pwyllgorau ac adolygu
Adolygu
- Adolygydd ar gyfer cyfnodolion Cyfathrebu Natur, Adroddiadau Gwyddonol, Adolygiadau Laser a Ffotoneg, PRL, Pra, PRB ac APL, ac ar gyfer asiantaeth ariannu EPSRC.
Pwyllgorau
- 2021-pwyllgor grŵp Optegol IOP cyfredol - Aelod cyffredin, Ysgrifennydd Dros Dro.
- 2018-2022 Trefnydd Ffotoneg a Lled-ddargludyddion Cyfansawdd Clwb Cyfnodolion.
- 2019-2022 Aelod o'r Amgylchedd Comittee - Ysgol Ffiseg a Seryddiaeth, Prifysgol Caerdydd.
Allgymorth
- Gweld Ffotonau Sengl - Datblygu arbrawf arddangos ffotoneg cwantwm ar gyfer allgymorth yng Ngŵyl Wyddoniaeth Caerdydd 2023 - 'Yr Amgueddfa Ar Ôl Tywyllwch'
- Generation Tech - Datblygu gweithdy ysgolion i gyflwyno agweddau ar dechnoleg lled-ddargludyddion cyfansawdd a'u cymhwyso i ddatrys problemau'r byd go iawn. CoI, ymgynghorydd gwyddonol a gwirfoddolwr.
- Rhaglen Llysgenhadon STEM - Gwirfoddoli mewn digwyddiadau gŵyl wyddoniaeth Caerdydd fel 'The Museum After Dark', Science Busking, allgymorth ar-lein fel 'Rwy'n wyddonydd STAY AT HOME' a llysgenhadon STEM ar-lein Brightside mentora.
Meysydd goruchwyliaeth
Diddordeb mewn goruchwylio a gweithio gyda myfyrwyr gyda brwdfrydedd dros eu gwaith. Diddordebau penodol yn
- ffotoneg cwantwm.
- Allyrwyr cwantwm mewn deunyddiau llydan bandgap ar gyfer ffynonellau ffoton sengl a synhwyro.
Goruchwylio PhD cyfredol:
- Bilge Yağcı (Cyd-oruchwyliwr) a ariennir gan Marie Skłodowska-Curie rhwydwaith hyfforddi Ewropeaidd LasIonDef, (ysgolhaig google).
- Yanzhao Guo, (Cyd-oruchwyliwr) a ariennir gan Marie Skłodowska-Curie rhwydwaith hyfforddi Ewropeaidd LasIonDef.
- Deminniggus (Nick) Pekei, "Synwyryddion allyrrydd cwantwm cyflwr solet", a ariennir gan LPDP.
Goruchwyliaeth gyfredol
Contact Details
Themâu ymchwil
Arbenigeddau
- Technolegau cwantwm
- Opteg cwantwm ac optomecaneg cwantwm
- Nanoffotoneg
- Lled-ddargludyddion cyfansawdd