![Daryl Beggs](https://profiles-cardiff.imgix.net/attachments/623?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Daryl Beggs
Lecturer
Condensed Matter and Photonics Group
School of Physics and Astronomy
- BeggsD@cardiff.ac.uk
- +44 29225 10268
- Queen's Buildings - North Building, Room N/1.12b, 5 The Parade, Newport Road, Cardiff, CF24 3AA
- Available for postgraduate supervision
Overview
I am a physicist with a background in silicon photonics and photonic crystals. At the Institute I am investigating some of the alternatives to silicon, with the aim of establishing methods to produce quantum photonic devices in compound semiconductor photonic integrated circuits.
Publication
2022
- 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)
2020
- Gough, G. P., Sobiesierski, A. D., Shabbir, S., Thomas, S., Beggs, D. M., Taylor, R. A. and Bennett, A. J. 2020. Faraday-cage-assisted etching of suspended gallium nitride nanostructures. AIP Advances 10(5), article number: 55319. (10.1063/5.0007947)
2019
- Scarpelli, L. et al. 2019. 99% beta factor and directional coupling of quantum dots to fast light in photonic crystal waveguides determined by spectral imaging. Physical Review B 100(3), article number: 35311. (10.1103/PhysRevB.100.035311)
- 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)
2017
- Beggs, D., Lang, B. and Oulton, R. 2017. Optimised chiral light-matter interactions at polarisation singularities for quantum photonics. Presented at: 2017 19th International Conference on Transparent Optical Networks (ICTON), Girona, Catalonia, Spain, 2-6 July 2017Transparent Optical Networks (ICTON), 2017 19th International Conference on. Transparent Optical Networks (ICTON) IEEE, (10.1109/ICTON.2017.8025144)
- Lang, B., Oulton, R. and Beggs, D. 2017. Optimised photonic crystal waveguide for chiral light?matter interactions. Journal of Optics 19(4), article number: 45001. (10.1088/2040-8986/aa5f5f)
2016
- Brenny, B. J. M., Beggs, D. M., van der Wel, R. E. C., Kuipers, L. and Polman, A. 2016. Near-infrared spectroscopic cathodoluminescence imaging polarimetry on silicon photonic crystal waveguides. ACS Photonics 3(11), pp. 2112-2121. (10.1021/acsphotonics.6b00557)
- Lang, B., Beggs, D. M. and Oulton, R. 2016. Time-reversal constraint limits unidirectional photon emission in slow-light photonic crystals. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374(2075), article number: 20150263. (10.1098/rsta.2015.0263)
2015
- Lang, B., Beggs, D., Young, A. B., Rarity, J. G. and Oulton, R. 2015. Stability of polarization singularities in disordered photonic crystal waveguides. PHYSICAL REVIEW A 92, article number: 63819. (10.1103/PhysRevA.92.063819)
- Young, A. B. et al. 2015. Polarization engineering in photonic crystal waveguides for spin-photon entanglers. Physical Review Letters 115, article number: 153901. (10.1103/PhysRevLett.115.153901)
- Schneider, C. et al. 2015. Quantum Dot Photonic Crystal Circuits. Presented at: ICTON 2015 [International Conference on Transparent Optical Materials], Budapest, Hungary, 5-9 July 20152015 17th International Conference on Transparent Optical Networks (ICTON). New York: IEEE, (10.1109/ICTON.2015.7193289)
- Beggs, D. M., Lang, B., Young, A. B. and Oulton, R. 2015. Polarisation singularities in photonic crystals for an on-chip spin-photon interface. Presented at: 17th International Conference on Transparent Optical Networks (ICTON 2015), Budapest, Hungary, 5-9 July 20152015 17th International Conference on Transparent Optical Networks (ICTON). IEEE pp. 1-4., (10.1109/ICTON.2015.7193324)
- Lang, B., Oulton, R., Beggs, D., Rarity, J. and Young, A. 2015. Simulation study of the stability of polarization structure in disordered photonic crystal waveguides[Poster]. Presented at: CLEO: Applications and Technology 2015, San Jose, California United States, 10–15 May 2015CLEO : 2015. OSA Technical Digest (online), Vol. JW2A.1. Washington DC: Optical Society of America, (10.1364/CLEO_AT.2015.JW2A.19)
2014
- Beggs, D. M., Young, A. B., Thijssen, A. C. T., Kuipers, K. and Oulton, R. 2014. Polarisation singularities in photonic crystals for an on-chip spin-photon interface. Presented at: 16th International Conference on Transparent Optical Networks (ICTON), Graz, Austria, 6-10 July 2014Transparent Optical Networks (ICTON), 2014 16th International Conference on. IEEE, (10.1109/ICTON.2014.6876694)
- Thijssen, A. et al. 2014. Artificial atoms for quantum information processing. Presented at: 16th International Conference on Transparent Optical Networks (ICTON), Graz, Austria, 6-10 July 2014Transparent Optical Networks (ICTON), 2014 16th International Conference on. IEEE, (10.1109/ICTON.2014.6876302)
- le Feber, B., Rotenberg, N., Beggs, D. M. and Kuipers, L. 2014. Simultaneous measurement of nanoscale electric and magnetic optical fields. Nature Photonics 8(1), pp. 43-46. (10.1038/nphoton.2013.323)
- le Feber, B., Rotenberg, N., Beggs, D. M. and Kuipers, L. 2014. Corrigendum: Simultaneous measurement of nanoscale electric and magnetic optical fields. Nature Photonics 8(3), pp. 263-263. (10.1038/nphoton.2014.42)
- Young, A., Thijssen, A., Beggs, D. M., Kuipers, K., Rarity, J. and Oulton, R. 2014. A polarization-singularity photonic crystal waveguide design to enable quantum dot spin to photon entanglement on-chip. Presented at: CLEO: Applications and Technology 2014, San Jose, California, USA, 8-13 June 2014CLEO: Applications and Technology. Washington DC: The Optical Society
2012
- Beggs, D. M., Rey, I. H., Kampfrath, T., Rotenberg, N., Kuipers, L. and Krauss, T. F. 2012. Ultrafast tunable optical delay line based on indirect photonic transitions. Physical Review Letters 108(21), article number: 213901. (10.1103/PhysRevLett.108.213901)
- Beggs, D. M., Krauss, T. F., Kuipers, L. and Kampfrath, T. 2012. Ultrafast tilting of the dispersion of a photonic crystal and adiabatic spectral compression of light pulses. Physical Review Letters 108(3), article number: 33902. (10.1103/PhysRevLett.108.033902)
2008
- Beggs, D. M., White, T. P., O'Faolain, L. and Krauss, T. F. 2008. Ultracompact and low-power optical switch based on silicon photonic crystals. Optics Letters 33(2), pp. 147-149. (10.1364/OL.33.000147)
Articles
- 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)
- Gough, G. P., Sobiesierski, A. D., Shabbir, S., Thomas, S., Beggs, D. M., Taylor, R. A. and Bennett, A. J. 2020. Faraday-cage-assisted etching of suspended gallium nitride nanostructures. AIP Advances 10(5), article number: 55319. (10.1063/5.0007947)
- Scarpelli, L. et al. 2019. 99% beta factor and directional coupling of quantum dots to fast light in photonic crystal waveguides determined by spectral imaging. Physical Review B 100(3), article number: 35311. (10.1103/PhysRevB.100.035311)
- Lang, B., Oulton, R. and Beggs, D. 2017. Optimised photonic crystal waveguide for chiral light?matter interactions. Journal of Optics 19(4), article number: 45001. (10.1088/2040-8986/aa5f5f)
- Brenny, B. J. M., Beggs, D. M., van der Wel, R. E. C., Kuipers, L. and Polman, A. 2016. Near-infrared spectroscopic cathodoluminescence imaging polarimetry on silicon photonic crystal waveguides. ACS Photonics 3(11), pp. 2112-2121. (10.1021/acsphotonics.6b00557)
- Lang, B., Beggs, D. M. and Oulton, R. 2016. Time-reversal constraint limits unidirectional photon emission in slow-light photonic crystals. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374(2075), article number: 20150263. (10.1098/rsta.2015.0263)
- Lang, B., Beggs, D., Young, A. B., Rarity, J. G. and Oulton, R. 2015. Stability of polarization singularities in disordered photonic crystal waveguides. PHYSICAL REVIEW A 92, article number: 63819. (10.1103/PhysRevA.92.063819)
- Young, A. B. et al. 2015. Polarization engineering in photonic crystal waveguides for spin-photon entanglers. Physical Review Letters 115, article number: 153901. (10.1103/PhysRevLett.115.153901)
- le Feber, B., Rotenberg, N., Beggs, D. M. and Kuipers, L. 2014. Simultaneous measurement of nanoscale electric and magnetic optical fields. Nature Photonics 8(1), pp. 43-46. (10.1038/nphoton.2013.323)
- le Feber, B., Rotenberg, N., Beggs, D. M. and Kuipers, L. 2014. Corrigendum: Simultaneous measurement of nanoscale electric and magnetic optical fields. Nature Photonics 8(3), pp. 263-263. (10.1038/nphoton.2014.42)
- Beggs, D. M., Rey, I. H., Kampfrath, T., Rotenberg, N., Kuipers, L. and Krauss, T. F. 2012. Ultrafast tunable optical delay line based on indirect photonic transitions. Physical Review Letters 108(21), article number: 213901. (10.1103/PhysRevLett.108.213901)
- Beggs, D. M., Krauss, T. F., Kuipers, L. and Kampfrath, T. 2012. Ultrafast tilting of the dispersion of a photonic crystal and adiabatic spectral compression of light pulses. Physical Review Letters 108(3), article number: 33902. (10.1103/PhysRevLett.108.033902)
- Beggs, D. M., White, T. P., O'Faolain, L. and Krauss, T. F. 2008. Ultracompact and low-power optical switch based on silicon photonic crystals. Optics Letters 33(2), pp. 147-149. (10.1364/OL.33.000147)
Conferences
- 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)
- Beggs, D., Lang, B. and Oulton, R. 2017. Optimised chiral light-matter interactions at polarisation singularities for quantum photonics. Presented at: 2017 19th International Conference on Transparent Optical Networks (ICTON), Girona, Catalonia, Spain, 2-6 July 2017Transparent Optical Networks (ICTON), 2017 19th International Conference on. Transparent Optical Networks (ICTON) IEEE, (10.1109/ICTON.2017.8025144)
- Schneider, C. et al. 2015. Quantum Dot Photonic Crystal Circuits. Presented at: ICTON 2015 [International Conference on Transparent Optical Materials], Budapest, Hungary, 5-9 July 20152015 17th International Conference on Transparent Optical Networks (ICTON). New York: IEEE, (10.1109/ICTON.2015.7193289)
- Beggs, D. M., Lang, B., Young, A. B. and Oulton, R. 2015. Polarisation singularities in photonic crystals for an on-chip spin-photon interface. Presented at: 17th International Conference on Transparent Optical Networks (ICTON 2015), Budapest, Hungary, 5-9 July 20152015 17th International Conference on Transparent Optical Networks (ICTON). IEEE pp. 1-4., (10.1109/ICTON.2015.7193324)
- Lang, B., Oulton, R., Beggs, D., Rarity, J. and Young, A. 2015. Simulation study of the stability of polarization structure in disordered photonic crystal waveguides[Poster]. Presented at: CLEO: Applications and Technology 2015, San Jose, California United States, 10–15 May 2015CLEO : 2015. OSA Technical Digest (online), Vol. JW2A.1. Washington DC: Optical Society of America, (10.1364/CLEO_AT.2015.JW2A.19)
- Beggs, D. M., Young, A. B., Thijssen, A. C. T., Kuipers, K. and Oulton, R. 2014. Polarisation singularities in photonic crystals for an on-chip spin-photon interface. Presented at: 16th International Conference on Transparent Optical Networks (ICTON), Graz, Austria, 6-10 July 2014Transparent Optical Networks (ICTON), 2014 16th International Conference on. IEEE, (10.1109/ICTON.2014.6876694)
- Thijssen, A. et al. 2014. Artificial atoms for quantum information processing. Presented at: 16th International Conference on Transparent Optical Networks (ICTON), Graz, Austria, 6-10 July 2014Transparent Optical Networks (ICTON), 2014 16th International Conference on. IEEE, (10.1109/ICTON.2014.6876302)
- Young, A., Thijssen, A., Beggs, D. M., Kuipers, K., Rarity, J. and Oulton, R. 2014. A polarization-singularity photonic crystal waveguide design to enable quantum dot spin to photon entanglement on-chip. Presented at: CLEO: Applications and Technology 2014, San Jose, California, USA, 8-13 June 2014CLEO: Applications and Technology. Washington DC: The Optical Society
Research
Research interests
- Integrated quantum photonics
- Compound semiconductor photonics
- Fabrication of photonic integrated circuits
- Photonic crystals
Biography
I have made a successful transition from theory and modelling (for my PhD), to micro-fabrication of photonic crystals, to ultrafast characterisation, developing the complete “food-chain” of skills for research in photonics. I used these skills to join the Centre for Quantum Photonics in Bristol as a Marie Curie Fellow, where I researched integrated quantum photonics with the aim of building an components for an optical quantum computer using the toolset provided by silicon photonics.
Academic positions
- 2016 – present
Lecturer in School of Physics & Astronomy and Institute for Compound Semiconductors, Cardiff University, UK
- 2013 – 2016
Marie Curie Individual Fellow at Centre for Quantum Photonics, University of Bristol, UK
- 2010 – 2013
Postdoctoral Research Fellow at FOM Institute AMOLF, Amsterdam, The Netherlands
- 2006 – 2010
Postdoctoral Research Fellow at School of Physics & Astronomy, University of St Andrews, UK
- 2003 – 2006
Ph. D. in Theoretical Condensed Matter Physics at Department of Physics & Astronomy, University of Durham, UK