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Multichannel photon-pair generation using hydrogenated amorphous silicon waveguides

机译:使用氢化非晶硅波导产生多通道光子对

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摘要

We demonstrate highly efficient photon-pair generation using an 8 mm long hydrogenated amorphous silicon (a-Si: H) waveguide in far-detuned multiple wavelength channels simultaneously, measuring a coincidence-to-accidental ratio as high as 400. We also characterize the contamination from Raman scattering and show it to be insignificant over a spectrum span of at least 5 THz. Our results highlight a-Si:H as a potential high-performance, CMOS-compatible platform for large-scale quantum applications, particularly those based on the use of multiplexed quantum signals.
机译:我们展示了使用8 mm长的氢化非晶硅(a-Si:H)波导同时在失谐的多个波长通道中高效地产生光子对,测量的巧合率高达400。拉曼散射产生的污染,并且在至少5 THz的频谱范围内显示不明显。我们的结果强调了a-Si:H是潜在的高性能,CMOS兼容平台,适用于大规模量子应用,尤其是那些基于使用多路量子信号的应用。

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