Huihui Wei

Bio: Huihui Wei is an academic researcher. The author has an hindex of 1, co-authored 1 publications receiving 1 citations.

High-Order Resonant Peaks and Polarization Dependence of Microphotoluminescence in Whispering-Gallery Mode ZnO Microrod Cavity

Abstract: High order phenomena in the visible range and with polarization dependence in the ultraviolet (UV) region of the microphotoluminescence (micro-PL) spectrum in whispering-gallery mode (WGM) ZnO microrod cavity have been thoroughly studied at room temperature. WGM ZnO microrod cavity with good crystallinity is produced by the CVD growth method, and the ZnO microrod structures are characterized by structural and optical methods. Through the micro-PL spectrum measurement of the ZnO microrod, it is found that high-order resonance peaks appeared in the visible region. The different polarization conditions can be adjusted by rotating the angles of the polarizer, and it is proved that the micro-PL spectrum has strong polarization-dependent behavior in the UV region. Our results imply broad application potentials in the study of ZnO microrod-based photonic cavity devices.

Optically Controlled Elastic Microcavities

Abstract: Whispering gallery mode (WGM) resonators are attractive cavities for integrated optical systems because of their small size, small mode volumes and high quality factors. These properties have been theoretically and experimentally studied for different devices including narrow bandwidth optical filters, laser resonators [1] and biochemical sensors. In such applications, the dynamic tunability of the resonators provides a high level of functionality of these devices.