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Frequency down-conversion of non-classical light from visible wavelength to telecom wavelength using difference-frequency generation

机译:使用差频生成,从可见波长到电信波长的非古典光的频率下转换

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We experimentally demonstrate frequency down-conversion of non-classical light by difference-frequency generation. We prepared a heralded single photon at wavelength of 780 nm, which corresponds to a resonant wavelength of a Rb atom for a quantum memory, and then converted the wavelength to a telecommunication wavelength of 1522 nm. The observed second-order correlation g~(2) (0) of the converted light is 0.54 ± 0.12, which clearly shows sub-Poissonian photon statistics of light.
机译:我们通过差异频率产生实验证明非古典光的频率下转换。我们在波长为780nm处制作了一个纹章的单光子,其对应于量子存储器的RB原子的谐振波长,然后将波长转换为1522nm的电信波长。转换光的观察到的二阶相关性G〜(2)(0)为0.54±0.12,清楚地显示了光的亚泊松光子统计。

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