Precise control of exciton-photon interaction and exploring novel optical response in semiconductor microcavities

在半导体微腔中，通过限制激子（电子-空穴对）和光子来实现腔极化激子态，并期望产生新的光学响应。然而，“宽间隙”半导体微腔中腔极化子的详细性质尚不清楚。本文采用显微光谱和超快动力学测量方法，对CuCl微腔中腔极化子的状态进行了精确的测量和分析。根据实验结果，实现了对极化子态的控制。

In the semiconductor microcavities, cavity polariton states are realized via confinement of excitons(electron-hole pairs) and photons, and the novel optical response is expected. However, the detailed properties of cavity polariton in "wide gap" semiconductor microcavity have been not clear. In this work, the states of the cavity polariton in CuCl microcavities was measured and analyzed precisely by using microscopic spectroscopy and ultrafast dynamics measurement. From the results, the control of the polariton states was achieved.