期刊
OPTICS EXPRESS
卷 20, 期 14, 页码 15275-15285出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.20.015275
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资金
- MEXT-KAKENHI Quantum Cybernetics [21101007]
- JSPS-KAKENHI [20244062, 23244079]
- JST-CREST
- JSPS-FIRST
- MIC-SCOPE
- MEXT
- G-COE Program
- Research Foundation for Opto-Science and Technology
- Grants-in-Aid for Scientific Research [20244062, 23244079, 21102007] Funding Source: KAKEN
We theoretically and experimentally investigate the conditions necessary to realize highly indistinguishable single-photon sources using parametric down conversion. The visibilities of Hong-Ou-Mandel (HOM) interference between photons in different fluorescence pairs were measured and a visibility of 95.8 +/- 2% was observed using a 0.7-mm-long beta barium borate crystal and 2-nm bandpass filters, after compensating for the reflectivity of the beam splitter. A theoretical model of HOM interference visibilities is proposed that considers non-uniform down conversion process inside the nonlinear crystal. It well explains the experimental results. (C) 2012 Optical Society of America
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