Journal
NANOSCALE RESEARCH LETTERS
Volume 12, Issue -, Pages -Publisher
SPRINGEROPEN
DOI: 10.1186/s11671-017-2153-2
Keywords
Telecom wavelength; Single-photon source; High emission rate; Micropillar
Funding
- National Key Basic Research Program of China [2013CB933304]
- National Natural Science Foundation of China [61505196, 91321313]
- Strategic Priority Research Program B of Chinese Academy of Sciences [XDB01010200]
- Beijing Key Discipline Foundation of Condensed Matter Physics
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A pronounced high count rate of single-photon emission at the wavelength of 1.3 mu m that is capable of fiber-based quantum communication from InAs/GaAs bilayer quantum dots coupled with a micropillar (diameter similar to 3 mu m) cavity of distributed Bragg reflectors was investigated, whose photon extraction efficiency has achieved 3.3%. Cavity mode and Purcell enhancement have been observed clearly in microphotoluminescence spectra. At the detection end of Hanbury-Brown and Twiss setup, the two avalanched single-photon counting modules record a total count rate of similar to 62,000/s; the time coincidence counting measurement demonstrates single-photon emission, with the multi-photon emission possibility, i.e., g(2)(0), of only 0.14.
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