标题： 从光谱均匀的表面曲率定向圆顶顶部单量子点有序阵列中获得的高纯度单光子发射 显示英文标题

标题： Highly pure single photon emission from spectrally uniform surface-curvature directed mesa top single quantum dot ordered array

摘要： 在可扩展架构中实现与光操控元件集成的有序且光谱均匀的单光子源阵列是构建单片量子光学电路（QOCs）的核心。 我们在此展示了一个空间有序的5 x 8表面曲率驱动的台面顶部GaAs(001)/InGaAs/GaAs单量子点（MTSQDs）阵列，这些量子点表现出高纯度（~99%）的单光子发射，这是根据在9.4K下测量的g(2)(0) < 0.02得出的结论。 偏振无关和偏振分辨的高分辨率光致发光（PL）测量表明，这些有序且光谱均匀的量子点具有中性激子发射，其固有线宽约为10 μeV，精细结构分裂小于10 μeV，这对于量子点在QOCs中的应用是一个重要的性能指标。 这些发现表明，基于MTSQD的单光子源阵列在与光操控单元（连接的共振腔、波导、分束器等）进行芯片上可扩展集成方面具有很高的潜力，从而能够构建QOCs。 显示英文摘要

摘要： Realizing ordered and spectrally uniform single photon source arrays integrable on-chip with light manipulating elements in scalable architecture lies at the core of building monolithic quantum optical circuits (QOCs). We demonstrate here a spatially-ordered 5 x 8 array of surface-curvature driven mesa-top GaAs(001)/InGaAs/GaAs single quantum dots (MTSQDs) that exhibit highly pure (~99% ) single photon emission as deduced from the measured g(2)(0) < 0.02 at 9.4K. Polarization-independent and polarization-resolved high resolution photoluminescence (PL) measurements show that these ordered and spectrally uniform QDs have neutral exciton emission with intrinsic linewidth ~ 10 ueV and fine structure splitting < 10 ueV, an important figure of merit for the use of QDs in QOCs. The findings point to the high potential of such MTSQD based single photon source arrays as a promising platform for on-chip scalable integration with light manipulating units (connected resonant cavity, waveguide, beam splitter, etc.) to enable constructing QOCs.