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Gerrits, T. (author), Stevens, M.J. (author), Baek, B. (author), Calkins, B. (author), Lita, A. (author), Glancy, S. (author), Knill, E. (author), Nam, S.W. (author), Mirin, R.P. (author), Hadfield, R.H. (author), Bennink, R.S. (author), Grice, W.P. (author), Dorenbos, S.N. (author), Zijlstra, T. (author), Klapwijk, T.M. (author), Zwiller, V. (author)We characterize a periodically poled KTP crystal that produces an entangled, two-mode, squeezed state with orthogonal polarizations, nearly identical, factorizable frequency modes, and few photons in unwanted frequency modes. We focus the pump beam to create a nearly circular joint spectral probability distribution between the two modes. After...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