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2 results on '"Rui, Bo"'

1. Intrinsic pure single-photon source and its nonclassical interference with weak coherent photons.

Author

Jin, Rui-Bo, Zhang, Jun, Shimizu, Ryosuke, Matsuda, Nobuyuki, Mitsumori, Yasuyoshi, Kosaka, Hideo, and Edamatsu, Keiichi

Subjects
*PHOTONS, *QUANTUM optics, *QUANTUM interference, *QUANTUM information science, *BANDPASS filters, *PHOTONICS, *AMPLITUDE modulation, *LIGHT filters
Abstract

We report the generation of pure single-photon state in the process of spontaneous parametric down-conversion with extended phase-matching condition. The measured joint spectral distribution of the photon pairs shows a high purity of the state we prepared. A visibility of 89.4± 0.5% was achieved without any spectral filtering in a nonclassical Hong-Ou-Mandel interference between pure heralded single photons and weak coherent photons. [ABSTRACT FROM AUTHOR]

Published
2011
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2. Nonclassical interference between independent intrinsically pure single photons at telecommunication wavelength.

Author

Jin, Rui-Bo, Wakui, Kentaro, Shimizu, Ryosuke, Benichi, Hugo, Miki, Shigehito, Yamashita, Taro, Terai, Hirotaka, Wang, Zhen, Fujiwara, Mikio, and Sasaki, Masahide

Subjects
*BANDPASS filters, *INTERFERENCE (Telecommunication), *PHOTONS, *QUANTUM interference, *WAVELENGTHS, *QUANTUM theory
Abstract

We demonstrate a Hong-Ou-Mandel interference between two independent, intrinsically pure, heralded single photons from spontaneous parametric down-conversion (SPDC) at telecommunication wavelength. A visibility of 85.5 ± 8.3% was achieved without using any bandpass filter. Thanks to the group-velocity-matched SPDC and superconducting nanowire single-photon detectors (SNSPDs), the fourfold coincidence counts are one order higher than that in the previous experiments. The combination of bright single-photon sources and SNSPDs is a crucial step for future practical quantum infocommunication systems at telecommunication wavelength. [ABSTRACT FROM AUTHOR]

Published
2013
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