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Engin, E. (author), Bonneau, D. (author), Natarajan, C.M. (author), Clark, A.S. (author), Tanner, M.G. (author), Hadfield, R.H. (author), Dorenbos, S.N. (author), Zwiller, V.G. (author), Ohira, K. (author), Suzuki, N. (author), Yoshida, H. (author), Iizuka, N. (author), Ezaki, M. (author), OBrien, J.L. (author), Thompson, M.G. (author)Photon sources are fundamental components for any quantum photonic technology. The ability to generate high count-rate and low-noise correlated photon pairs via spontaneous parametric down-conversion using bulk crystals has been the cornerstone of modern quantum optics. However, future practical quantum technologies will require a scalable...journal article 2013
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McCarthy, A. (author), Krichel, N.J. (author), Gemmell, N.R. (author), Ren, X. (author), Tanner, M.G. (author), Dorenbos, S.N. (author), Zwiller, V. (author), Hadfield, R.H. (author), Buller, G.S. (author)This paper highlights a significant advance in time-of-flight depth imaging: by using a scanning transceiver which incorporated a free-running, low noise superconducting nanowire single-photon detector, we were able to obtain centimeter resolution depth images of low-signature objects in daylight at stand-off distances of the order of one...journal article 2013
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Gemmell, N.R. (author), McCarthy, A. (author), Liu, B. (author), Tanner, M.G. (author), Dorenbos, S.N. (author), Zwiller, V. (author), Patterson, M.S. (author), Buller, G.S. (author), Wilson, B.C. (author), Hadfield, R.H. (author)Direct monitoring of singlet oxygen (1O2) luminescence is a particularly challenging infrared photodetection problem. 1O2, an excited state of the oxygen molecule, is a crucial intermediate in many biological processes. We employ a low noise superconducting nanowire single-photon detector to record 1O2 luminescence at 1270 nm wavelength from a...journal article 2013
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Bonneau, D. (author), Lobino, M. (author), Jiang, P. (author), Natarajan, C.M. (author), Tanner, M.G. (author), Hadfield, R.H. (author), Dorenbos, S.N. (author), Zwiller, V. (author), Thompson, M.G. (author), O'Brien, J.L. (author)We demonstrate fast polarization and path control of photons at 1550 nm in lithium niobate waveguide devices using the electro-optic effect. We show heralded single photon state engineering, quantum interference, fast state preparation of two entangled photons, and feedback control of quantum interference. These results point the way to a single...journal article 2012
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Lobino, M. (author), Marshall, G.D. (author), Xiong, C. (author), Clark, A.S. (author), Bonneau, D. (author), Natarajan, C.M. (author), Tanner, M.G. (author), Hadfield, R.H. (author), Dorenbos, S.N. (author), Zijlstra, T. (author), Zwiller, V. (author), Marangoni, M. (author), Ramponi, R. (author), Thompson, M.G. (author), Eggleton, B.J. (author), O'Brien, J.L. (author)We demonstrate photon-pair generation in a reverse proton exchanged waveguide fabricated on a periodically poled magnesium doped stoichiometric lithium tantalate substrate. Detected pairs are generated via a cascaded second order nonlinear process where a pump laser at wavelength of 1.55 ?m is first doubled in frequency by second harmonic...journal article 2011
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- Xiong, C. (author), Marshall, G.D. (author), Peruzzo, A. (author), Lobino, M. (author), Clark, A.S. (author), Choi, D.Y. (author), Madden, S.J. (author), Natarajan, C.M. (author), Tanner, M.G. (author), Hadfield, R.H. (author), Dorenbos, S.N. (author), Zijlstra, T. (author), Zwiller, V. (author), Thompson, M.G. (author), Rarity, J.G. (author), Steel, M.J. (author), Luther-Davies, B. (author), Eggleton, B.J. (author), O'Brien, J.L. (author) journal article 2011
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Xiong, C. (author), Marshall, G.D. (author), Peruzzo, A. (author), Lobino, M. (author), Clark, A.S. (author), Choi, D.Y. (author), Madden, S.J. (author), Natarajan, C.M. (author), Tanner, M.G. (author), Hadfield, R.H. (author), Dorenbos, S.N. (author), Zijlstra, T. (author), Zwiller, V. (author), Thompson, M.G. (author), Rarity, J.G. (author), Steel, M.J. (author), Luther-Davies, B. (author), Eggleton, B.J. (author), O'Brien, J.L. (author)We demonstrate a 1550 nm correlated photon-pair source in an integrated glass platform—a chalcogenide As2S3 waveguide. A measured pair coincidence rate of 80?s?1 was achieved using 57 mW of continuous-wave pump. The coincidence to accidental ratio was shown to be limited by spontaneous Raman scattering effects that are expected to be mitigated...journal article 2011
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Tanner, M.G. (author), Natarajan, C.M. (author), Pottapenjara, V.K. (author), O'Connor, J.A. (author), Warburton, R.J. (author), Hadfield, R.H. (author), Baek, B. (author), Nam, S. (author), Dorenbos, S.N. (author), Bermúdez Ureña, E. (author), Zijlstra, T. (author), Klapwijk, T.M. (author), Zwiller, V. (author)Superconducting nanowire single-photon detectors (SNSPDs) have emerged as a highly promising infrared single-photon detector technology. Next-generation devices are being developed with enhanced detection efficiency (DE) at key technological wavelengths via the use of optical cavities. Furthermore, new materials and substrates are being explored...journal article 2010