Publications

2024

Laser-written waveguide-integrated coherent spins in diamond.,
arXiv:2310.20540.
Yanzhao Guo, John P. Hadden, Federico Gorrini, Giulio Coccia, Vibhav Bharadwaj, Vinaya Kumar Kavatamane, Mohammad Sahnawaz Alam, Roberta Ramponi, Paul E. Barclay, Andrea Chiappini, Maurizio Ferrari, Alexander Kubanek, Angelo Bifone, Shane M. Eaton, Anthony J. Bennett
Links: arXiv

Determining Strain Components in a Diamond Waveguide from Zero-Field ODMR Spectra of NV− Center Ensembles.,
arXiv:2310.20540.
M. Sahnawaz Alam, Federico Gorrini, Michał Gawełczyk, Daniel Wigger, Giulio Coccia, Yanzhao Guo, Sajedeh Shahbazi, Vibhav Bharadwaj, Alexander Kubanek, Roberta Ramponi, Paul E. Barclay, Anthony J. Bennett, John P. Hadden, Angelo Bifone, Shane M. Eaton, Paweł Machnikowski
Links: arXiv

Probing Purcell enhancement and photon collection efficiency of InAs quantum dots at nodes of the cavity electric field.,
Phys. Rev. Research 6, L022004 (2024)
Matthew Jordan, Petros Androvitsaneas, Rachel N Clark, Aristotelis Trapalis, Ian Farrer, Wolfgang Langbein, Anthony J. Bennett.
Links: Publisher, arXiv

Fabrication of quantum emitters in aluminium nitride by Al-ion implantation and thermal annealing.,
Appl. Phys. Lett. 124, 124003 (2024).
E. Nieto Hernández, H.B. Yağcı, V. Pugliese, P. Aprà, J. K. Cannon, S. G. Bishop, J. Hadden, S. Ditalia Tchernij, Olivero, A.J. Bennett, J. Forneris.
Links: Publisher, arXiv

2023

Photo-dynamics of quantum emitters in aluminum nitride.,
arXiv:2310.18190.
Yanzhao Guo, John P. Hadden, Rachel N. Clark, Samuel G. Bishop, Anthony J. Bennett.
Links: arXiv

Direct-write projection lithography of quantum dot micropillar single photon sources.,
Appl. Phys. Lett. 123, 094001 (2023).
P. Androvitsaneas, R. N. Clark, M. Jordan, M. A. Perez, T. Peach, S. Thomas, S. Shabbir, A. D. Sobiesierski, A. Trapalis, I. A. Farrer, W. W. Langbein, A. J Bennett.
Links: Publisher, arXiv

Polarization study of single color centers in aluminum nitride.,
Appl. Phys. Lett. 122, 172104 (2023).
J.K. Cannon, S. G Bishop, J. P Hadden, H.B. Yagci, A. J Bennett.
Links: Publisher, arXiv

Bullseye dielectric cavities for photon collection from a surface-mounted quantum-light-emitter.,
Sci Rep 13, 5316 (2023).
R. Hekmati, J. P Hadden, A. Mathew, S. G Bishop, S. A Lynch, A. J Bennett.
Links: Publisher, arXiv

Coherence protection of spin qubits in hexagonal boron nitride.,
Nat Commun 14, 461 (2023).
A. J Ramsay, R. Hekmati, C. J Patrickson, S. Baber, D. RM Arvidsson-Shukur, A. J Bennett, I. J Luxmoore.
Links: Publisher, arXiv

2022

Design of suspended triangular waveguides and serrated photonic crystal nanobeam cavities.,
Under review.
C. Maynard, D. M. Beggs, M. J. Wale, A. J. Bennett and J. P. Hadden.

Two-Photon Interference of Single Photons from Dissimilar Sources.,
Phys. Rev. Applied 18, 054005 (2022)
C. Dangel, J. Schmitt, A. J. Bennett, K. Müller, and J. J. Finley.
Links: Publisher, arXiv

Evanescent-Field Assisted Photon Collection from Quantum Emitters under a Solid Immersion Lens.,
New J. Phys. 24 103027 (2022)
S.G. Bishop, J.K. Cannon, H.B. Yagci, R.N. Clark, J.P. Hadden, W.W. Langbein, and A.J. Bennett.
Links: Publisher, Cardiff, arXiv

Design of free-space couplers for suspended triangular nano-beam waveguides.,
J. Phys. D: Appl. Phys. 55 474002 (2022).
JP Hadden, C. Maynard, D. M Beggs, R. A Taylor, A. J Bennett.
Links: Publisher,arXiv, Cardiff

Enhanced light collection from a gallium nitride color center using a near index-matched solid immersion lens.,
Appl. Phys. Lett., 120(11):114001 (2022). doi:10.1063/5.0085257.
S. G. Bishop, J. P. Hadden, R. Hekmati, J. K. Cannon, W. W. Langbein, and A. J. Bennett.
Links: Publisher, Cardiff, arXiv

Quantum technologies in diamond enabled by laser processing.,
Appl. Phys. Lett., 120(2):020502, 2022. doi:10.1063/5.0080348.
A. N. Giakoumaki, G. Coccia, V. Bharadwaj, J. P. Hadden, A. J. Bennett, B. Sotillo, R. Yoshizaki, P. Olivero, O. Jedrkiewicz, R. Ramponi, S. M. Pietralunga, M. Bollani, A. Bifone, P. E. Barclay, A. Kubanek, and S. M. Eaton.
Links: Publisher, Cardiff

Super-Poissonian Light Statistics from Individual Silicon Vacancy Centers Coupled to a Laser-Written Diamond Waveguide.,
ACS Photonics 2022, 9, 10, 3366–3373 (2022)
Michael K. Koch, Michael Hoese, Vibhav Bharadwaj, Johannes Lang, John P. Hadden, Roberta Ramponi, Fedor Jelezko, Shane M. Eaton, and Alexander Kubanek.
Links: Publisher, arXiv, Cardiff

2021

Frontiers of Nanoscience : Electrical control of semiconductor quantum dot single photon sources.,
Elsevier, 2021. doi:10.1016/b978-0-12-822083-2.00013-7.
A.J. Bennett.
Links: Publisher, Cardiff

Tailoring topological edge states with photonic crystal nanobeam cavities.,
Sci. Rep., 11(1):1055, 2021. doi:10.1038/s41598-020-79915-6.
Yongkang Gong, Liang Guo, Stephan Wong, Anthony J. Bennett, and Sang Soon Oh.
Links: Publisher, Cardiff

Integrated Magnetometry Platform with Stackable Waveguide-Assisted Detection Channels for Sensing Arrays.,
Phys. Rev. Appl., 15(5):054059, 2021. doi:10.1103/PhysRevApplied.15.054059.
Michael Hoese, Michael K. Koch, Vibhav Bharadwaj, Johannes Lang, John P. Hadden, Reina Yoshizaki, Argyro N. Giakoumaki, Roberta Ramponi, Fedor Jelezko, Shane M. Eaton, and Alexander Kubanek.
Links: Publisher, Cardiff, arXiv

2020

Room Temperature Quantum Emitter in Aluminum Nitride.,
ACS Photonics, 7(7):1636–1641, 2020. doi:10.1021/acsphotonics.0c00528.
Sam G Bishop, John P Hadden, Faris Alzahrani, Reza Hekmati, Diana L Huffaker, Wolfgang W Langbein, and Anthony J Bennett.
Links: Publisher, Cardiff

Faraday-cage-assisted etching of suspended gallium nitride nanostructures.,
AIP Adv., 10(5):055319, 2020. doi:10.1063/5.0007947.
Geraint P Gough, Angela D Sobiesierski, Saleem Shabbir, Stuart Thomas, Daryl M Beggs, Robert A Taylor, and Anthony J Bennett.
Links: Publisher, Cardiff

Topological Insulator Laser Using Valley-Hall Photonic Crystals.,
ACS Photonics, 7(8):2089–2097, 2020. doi:10.1021/acsphotonics.0c00521.
Yongkang Gong, Stephan Wong, Anthony J. Bennett, Diana L. Huffaker, and Sang Soon Oh.
Links: Publisher, Cardiff, arXiv

In-situ measurements of fabrication induced strain in diamond photonic-structures using intrinsic colour centres.,
npj Quantum Inf., 6(1):50, 2020. doi:10.1038/s41534-020-0277-1.
Sebastian Knauer, John P Hadden, and John G. Rarity.
Links: Publisher, Cardiff

2019

Photon Phase Shift at the Few-Photon Level and Optical Switching by a Quantum Dot in a Microcavity.,
Phys. Rev. Appl., 11(6):061001, 2019. doi:10.1103/PhysRevApplied.11.061001.
L.M. Wells, S. Kalliakos, B. Villa, D.J.P. Ellis, R.M. Stevenson, A.J. Bennett, I. Farrer, D.A. Ritchie, and A.J. Shields.
Links: Publisher, Cardiff, arXiv

A quantum dot as a source of time-bin entangled multi-photon states.,
Quantum Sci. Technol., 4(2):025011, 2019. doi:10.1088/2058-9565/ab0a9b.
J. P. Lee, B. Villa, A. J. Bennett, R. M. Stevenson, D J P Ellis, I. Farrer, D. A. Ritchie, and A. J. Shields.
Links: Publisher, Cardiff

Quantum Micro–Nano Devices Fabricated in Diamond by Femtosecond Laser and Ion Irradiation.,
Adv. Quantum Technol., 2(5-6):1900006, 2019. doi:10.1002/qute.201900006.
Shane M. Eaton, John P. Hadden, Vibhav Bharadwaj, Jacopo Forneris, Federico Picollo, Federico Bosia, Belen Sotillo, Argyro N. Giakoumaki, Ottavia Jedrkiewicz, Andrea Chiappini, Maurizio Ferrari, Roberto Osellame, Paul E. Barclay, Paolo Olivero, and Roberta Ramponi.
Links: Publisher, Cardiff

Stabilization of an optical transition energy via nuclear Zeno dynamics in quantum-dot–cavity systems.,
Phys. Rev. A, 99(5):053853, 2019. doi:10.1103/PhysRevA.99.053853.
Thomas Nutz, Petros Androvitsaneas, Andrew Young, Ruth Oulton, and Dara P. S. McCutcheon.
Links: Publisher, arXiv

Efficient Quantum Photonic Phase Shift in a Low Q-Factor Regime.,
ACS Photonics, 6(2):429–435, 2019. doi:10.1021/acsphotonics.8b01380.
P. Androvitsaneas, A. B. Young, J. M. Lennon, C. Schneider, S. Maier, J. J. Hinchliff, G. S. Atkinson, E. Harbord, M. Kamp, S. Höfling, J. G. Rarity, and R. Oulton.
Links: Publisher, Cardiff

2018

Independent indistinguishable quantum light sources on a reconfigurable photonic integrated circuit.,
Appl. Phys. Lett., 112(21):211104, 2018. doi:10.1063/1.5028339.
D. J. P. Ellis, A. J. Bennett, C. Dangel, J. P. Lee, J. P. Griffiths, T. A. Mitchell, T.-K. Paraiso, P. Spencer, D. A. Ritchie, and A. J. Shields.
Links: Publisher, Cardiff, arXiv

Controllable Photonic Time-Bin Qubits from a Quantum Dot.,
Phys. Rev. X, 8(2):021078, 2018. doi:10.1103/PhysRevX.8.021078.
J. P. Lee, L. M. Wells, B. Villa, S. Kalliakos, R. M. Stevenson, D. J. P. Ellis, I. Farrer, D. A. Ritchie, A. J. Bennett, and A. J. Shields.
Links: Publisher, Cardiff, arXiv

Multi-dimensional photonic states from a quantum dot.,
Quantum Sci. Technol., 3(2):024008, 2018. doi:10.1088/2058-9565/aaa7b7.
J. P. Lee, A. J. Bennett, R. M. Stevenson, D J P Ellis, I. Farrer, D. A. Ritchie, and A. J. Shields.
Links: Publisher, Cardiff, arXiv

Tamm plasmons for efficient interaction of telecom wavelength photons and quantum dots.,
IET Optoelectron., 12(1):11–14, 2018. doi:10.1049/iet-opt.2017.0076.
Matthew Parker, Edmund Harbord, Andrew Young, Petros Androvitsaneas, John Rarity, and Ruth Oulton.
Links: Publisher

Integrated waveguides and deterministically positioned nitrogen vacancy centers in diamond created by femtosecond laser writing.,
Opt. Lett., 43(15):3586, 2018. doi:10.1364/OL.43.003586.
J. P. Hadden, V. Bharadwaj, B. Sotillo, S. Rampini, R. Osellame, J. D. Witmer, H. Jayakumar, T. T. Fernandez, A. Chiappini, C. Armellini, M. Ferrari, R. Ramponi, P. E. Barclay, and S. M. Eaton.
Links: Publisher, Cardiff, arXiv

Fabrication of hybrid Fabry-Pérot microcavity using two-photon lithography for single-photon sources.,
Opt. Express, 26(25):33245, 2018. doi:10.1364/OE.26.033245.
F. Ortiz-Huerta, L Chen, M Taverne, J. P. Hadden, M Johnson, Y.-L.D. L. D. Ho, and J.G. G. Rarity.
Links: Publisher, Cardiff

Polarized micro-Raman studies of femtosecond laser written stress-induced optical waveguides in diamond.,
Appl. Phys. Lett., 112(3):031109, 2018. doi:10.1063/1.5017108.
B. Sotillo, A. Chiappini, V. Bharadwaj, J. P. Hadden, F. Bosia, P. Olivero, M. Ferrari, R. Ramponi, P. E. Barclay, and S. M. Eaton.
Links: Publisher, Cardiff, arXiv

2017

Universal Growth Scheme for Quantum Dots with Low Fine-Structure Splitting at Various Emission Wavelengths.,
Phys. Rev. Appl., 8(1):014013, 2017. doi:10.1103/PhysRevApplied.8.014013.
Joanna Skiba-Szymanska, R. Mark Stevenson, Christiana Varnava, Martin Felle, Jan Huwer, Tina Müller, Anthony J. Bennett, James P. Lee, Ian Farrer, Andrey B. Krysa, Peter Spencer, Lucy E. Goff, David A. Ritchie, Jon Heffernan, and Andrew J. Shields.
Links: Publisher, Cardiff

Electrically driven and electrically tunable quantum light sources.,
Appl. Phys. Lett., 110(7):071102, 2017. doi:10.1063/1.4976197.
J. P. Lee, E. Murray, A. J. Bennett, D. J. P. Ellis, C. Dangel, I. Farrer, P. Spencer, D. A. Ritchie, and A. J. Shields.
Links: Publisher, Cardiff, arXiv

Surface acoustic wave modulation of a coherently driven quantum dot in a pillar microcavity.,
Appl. Phys. Lett., 111(1):011103, 2017. doi:10.1063/1.4990966.
B. Villa, A. J. Bennett, D. J. P. Ellis, J. P. Lee, J. Skiba-Szymanska, T. A. Mitchell, J. P. Griffiths, I. Farrer, D. A. Ritchie, C. J. B. Ford, and A. J. Shields.
Links: Publisher, Cardiff, arXiv

Visible to Infrared Diamond Photonics Enabled by Focused Femtosecond Laser Pulses.,
Micromachines, 8(2):60, 2017. doi:10.3390/mi8020060.
Belén Sotillo, Vibhav Bharadwaj, John Hadden, Stefano Rampini, Andrea Chiappini, Toney Fernandez, Cristina Armellini, Ali Serpengüzel, Maurizio Ferrari, Paul Barclay, Roberta Ramponi, and Shane Eaton.
Links: Publisher, Cardiff

2016

A semiconductor photon-sorter.,
Nat. Nanotechnol., 11(10):857–860, 2016. doi:10.1038/nnano.2016.113.
A. J. Bennett, J. P. Lee, D. J. P. Ellis, I. Farrer, D. A. Ritchie, and A. J. Shields.
Links: Publisher, Cardiff, arXiv

Ramsey interference in a multilevel quantum system.,
Phys. Rev. B, 93(8):085407, 2016. doi:10.1103/PhysRevB.93.085407.
J. P. Lee, A. J. Bennett, J. Skiba-Szymanska, D. J. P. Ellis, I. Farrer, D. A. Ritchie, and A. J. Shields.
Links: Publisher, Cardiff

Cavity-enhanced coherent light scattering from a quantum dot.,
Sci. Adv., 2(4):e1501256, 2016. doi:10.1126/sciadv.1501256.
Anthony J. Bennett, James P. Lee, David J. P. Ellis, Thomas Meany, Eoin Murray, Frederik F. Floether, Jonathan P. Griffths, Ian Farrer, David A. Ritchie, and Andrew J. Shields.
Links: Publisher, Cardiff, arXiv

Few-second-long correlation times in a quantum dot nuclear spin bath probed by frequency-comb nuclear magnetic resonance spectroscopy.,
Nat. Phys., 12(7):688–693, 2016. doi:10.1038/nphys3686.
A. M. Waeber, M. Hopkinson, I. Farrer, D. A. Ritchie, J. Nilsson, R. M. Stevenson, A. J. Bennett, A. J. Shields, G. Burkard, A. I. Tartakovskii, M. S. Skolnick, and E. A. Chekhovich.
Links: Publisher, Cardiff, arXiv

Enhanced indistinguishability of in-plane single photons by resonance fluorescence on an integrated quantum dot.,
Appl. Phys. Lett., 109(15):151112, 2016. doi:10.1063/1.4964888.
Sokratis Kalliakos, Yarden Brody, Anthony J. Bennett, David J. P. Ellis, Joanna Skiba-Szymanska, Ian Farrer, Jonathan P. Griffiths, David A. Ritchie, and Andrew J. Shields.
Links: Publisher, Cardiff

Charged quantum dot micropillar system for deterministic light-matter interactions.,
Phys. Rev. B, 93(24):241409, 2016. doi:10.1103/PhysRevB.93.241409.
P. Androvitsaneas, A. B. Young, C. Schneider, S. Maier, M. Kamp, S. Höfling, S. Knauer, E. Harbord, C. Y. Hu, J. G. Rarity, and R. Oulton.
Links: Publisher, arXiv

Diamond photonics platform enabled by femtosecond laser writing.,
Sci. Rep., 6(1):35566, 2016. doi:10.1038/srep35566.
Belén Sotillo, Vibhav Bharadwaj, J. P. Hadden, Masaaki Sakakura, Andrea Chiappini, Toney Teddy Fernandez, Stefano Longhi, Ottavia Jedrkiewicz, Yasuhiko Shimotsuma, Luigino Criante, Roberto Osellame, Gianluca Galzerano, Maurizio Ferrari, Kiyotaka Miura, Roberta Ramponi, Paul E. Barclay, and Shane Michael Eaton.
Links: Publisher, Cardiff, arXiv

Single-crystal diamond low-dissipation cavity optomechanics.,
Optica, 3(9):963, 2016. doi:10.1364/OPTICA.3.000963.
Matthew Mitchell, Behzad Khanaliloo, David P. Lake, Tamiko Masuda, J. P. Hadden, and Paul E. Barclay.
Links: Publisher, Cardiff, arXiv