论文标题
GAAS中单激子中心的远程泵送GHz抗发射发射
Remotely pumped GHz antibunched emission from single exciton centers in GaAs
论文作者
论文摘要
量子通信网络需要在片上转移和操纵单个粒子以及它们的互连到单个光子以进行远程信息交换。 GHz表面声波（锯）推动的飞行激子是满足这些要求的出色使者。在这里，我们证明了由单个激子组成的单个激子中心的声学操纵，该中心由嵌入半导体量子的浅层杂质中心绑定到浅层杂质中心。时间分辨的光致发光研究表明，这些中心的发射强度和能量以3.5 GHz的锯频率振荡。此外，这些中心可以通过沿量子井通道上的几微米的量子井通道的声流传输来远程泵送。时间相关研究表明，这些中心发出了抗堆的光，因此充当了以GHz频率运行的单光子源。我们的结果为具有自然光子界面的微波频率下的单激子的基于激子的按需操纵和片上转移铺平了道路。
Quantum communication networks require on-chip transfer and manipulation of single particles as well as their interconversion to single photons for long-range information exchange. Flying excitons propelled by GHz surface acoustic waves (SAWs) are outstanding messengers to fulfill these requirements. Here, we demonstrate the acoustic manipulation of single exciton centers consisting of individual excitons bound to shallow impurities centers embedded in a semiconductor quantum well. Time-resolved photoluminescence studies show that the emission intensity and energy from these centers oscillate at the SAW frequency of 3.5 GHz. Furthermore, these centers can be remotely pumped via acoustic transport of flying excitons along a quantum well channel over several microns. Time correlation studies reveal that the centers emit anti-bunched light, thus acting as single-photon sources operating at GHz frequencies. Our results pave the way for the exciton-based on-demand manipulation and on-chip transfer of single excitons at microwave frequencies with a natural photonic interface.
