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Dr. Ben Green

Research interests

My research lies at the interface between applied physics and advanced engineering, as recognised by my recent award of a five-year Royal Academy of Engineering Research Fellowship. My primary focus is the identification and exploitation of technologically useful point defects in diamond: this is driven through a mixture of electron paramagnetic resonance and coherent optical experiments, with an emphasis on the understanding and control of defects with the potential to act as spin-photon interfaces.

I am part of the Centre for Doctoral Training in Diamond Science and Technology - please see the DST website for a list of current PhD projects. I also work closely with my previous colleagues in the Networked Quantum Information Technologies (NQIT) quantum hub. As part of WP4: "Solid state node engineering", we are developing quantum computing nodes based on optical-cavity-enhanced colour centres in diamond.

Publications
  • C. J. Stephen, B. L. Green, Y. N. D. Lekhai, L. Weng, P. Hill, S. Johnson, A. C. Frangeskou, P. L. Diggle, M. J. Strain, E. Gu, M. E. Newton, J. M. Smith, P. S. Salter, G. W. Morley, Three-dimensional solid-state qubit arrays with long-lived spin coherence, Phys. Rev. Applied 12, 064005 [arXiv:1807.03643]
  • G. A. Stimpson, M. S. Skilbeck, R. L. Patel, B. L. Green, G. W. Morley, An open-source high-frequency lock-in amplifier, Rev. Sci. Instrum. 90, 094701 [arXiv:1811.1049]
  • Y.-C. Chen, B. Griffiths, L. Weng, S. Nicley, S. N. Ishmael, Y. Lekhai, S. Johnson, C. J. Stephen, B. L. Green, G. W. Morley, M. E. Newton, M. J. Booth, P. S. Salter, J. M. Smith, Laser writing of individual atomic defects in a crystal with near-unity yield, Optica 6, 662 (2019) [arXiv:1807.04028]
  • B. L. Green, M. W. Doherty, E. Nako, N. B. Manson, U. F. S. D'Haenens-Johansson, S. D. Williams, D. J. Twitchen, M. E. Newton, Electronic structure of the neutral silicon-vacancy center in diamond, Phys. Rev. B 99, 161112(R) (2019) [arXiv:1804.09141]
  • R. Sandstrom, L. Ke, A. Martin, Z. Wang, M. Kianinia, B. L. Green, W.-b. Gao, I. Aharonovich, Optical properties of implanted Xe color centers in diamond, Opt. Commun. 411, 182 (2018)
  • B. L. Green, S. Mottishaw, B. G. Breeze, A. M. Edmonds, U. F. S. D’Haenens-Johansson, M. W. Doherty, S. D. Williams, D. J. Twitchen, M. E. Newton, Neutral silicon-vacancy center in diamond: spin polarization and lifetimes, Phys. Rev. Lett. 119, 096402 (2017)
  • B. L. Green, B. G. Breeze, G. J. Rees, J. V. Hanna, J.-P. Chou, V. Ivády, A. Gali, M. E. Newton, All-optical hyperpolarization of electron and nuclear spins in diamond, Phys. Rev. B 96, 054101 (2017)
  • B. L. Green, B. G. Breeze, M. E. Newton, Electron paramagnetic resonance and photochromism of N3V0 in diamond, J. Phys. Condens. Matter 29, 225701 (2017)
  • Y.-C. Chen, P. S. Salter, S. Knauer, L. Weng, A. C. Frangeskou, C. J. Stephen, P. R. Dolan, S. Johnson, B. L. Green, G. W. Morley, M. E. Newton, J. G. Rarity, M. J. Booth, J. M. Smith, Laser writing of coherent colour centres in diamond, Nat. Photon. 11, 77 (2017)
  • L. I. Tomlinson, H. V. Patten, B. L. Green, J. A. Iacobini, K. E. Meadows, K. McKelvey, P. R. Unwin, M. E. Newton, J. V. Macpherson, Intermittent-contact Scanning Electrochemical Microscopy as a Quantitative Probe of Defects in Single Crystal Boron Doped Diamond Electrodes, Electroanalysis 28, 2297 (2016)
  • B. L. Green, M. W. Dale, M. E. Newton, D. Fisher, Electron paramagnetic resonance of the N2V defect in 15N-doped synthetic diamond, Phys. Rev. B 92, 165204 (2015)
  • P. Kowalska, J. R. Cheeseman, K. Razmkhah, B. L. Green, L. A. Nafie, A. Rodger, Experimental and Theoretical Polarized Raman Linear Difference Spectroscopy of Small Molecules with a New Alignment Method Using Stretched Polyethylene Film, Anal. Chem. 84, 1394 (2012)
  • U. F. S. D’Haenens-Johansson, A. M. Edmonds, B. L. Green, M. E. Newton, G. Davies, P. Martineau, R. Khan, D. Twitchen, Optical properties of the neutral silicon split-vacancy center in diamond, Phys. Rev. B 84, 245208 (2011)

ORCID iD iconorcid.org/0000-0003-3073-7970

ResearchGate

Patents
  • J. R. Brandon, I. Friel, M. A. Cooper, G. A. Scarsbrook, B. L. Green, A microwave plasma reactor for manufacturing synthetic diamond material, WO2015193155A1
Awards
  • Best Contributed Paper prize at the Rank Prize Fund symposium "Solid State Nano-Photonics for Quantum Science and Technology" (2017)
  • Best Student Presentation at 64th Diamond Conference, Warwick, UK (2013)
  • Corbett Prize for Outstanding Contribution by a Young Scientist, 26th International Conference for Defects in Semiconductors, Nelson, New Zealand (2011)
Ben Green
Write to:

Department of Physics, University of Warwick, Coventry, CV4 7AL

Contact:

Tel: +44 (0)2476 573443

Email: b dot green at warwick dot ac dot uk