基于微腔耦合量子点的通讯波长高计数单光子源研究进展

来源 :第十二届全国分子束外延学术会议 | 被引量 : 0次 | 上传用户:yinzheng1974
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双层耦合InAs量子点的发光波长在低温下可拓展至光通信波段,可应用于光纤量子通信及光纤量子密钥传输等重要领域3-5.通过分子束外延(MBE)梯度生长方法获得的低密度耦合点,已经被证实可以作为单光子源使用6.本文报道通过将双层量子点与微柱微腔(~3μm)耦合的方法,利用Purcell效应在通信波段获得了高计数的单光子发射.利用InGaAs单光子探测器,单光子计数达到62KHz.
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