Acousto-optic modulation of photonic bound state in the continuum
Publication in refereed journal

香港中文大學研究人員
替代計量分析
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摘要Photonic bound states in the continuum (BICs) have recently been studied in various systems and have found wide applications in sensors, lasers, and filters. Applying BICs in photonic integrated circuits enables low-loss light guidance and routing in low-refractive-index waveguides on high-refractive-index substrates, which opens a new avenue for integrated photonics with functional single-crystal materials. Here, we demonstrate high-quality integrated lithium niobate microcavities inside which the photonic BIC modes circulate and further modulate these BIC modes acousto-optically by using piezoelectrically actuated surface acoustic waves at microwave frequencies. With a high acousto-optic modulation frequency, the acousto-optic coupling is well situated in the resolved-sideband regime. This leads to coherent coupling between microwave and optical photons, which is exhibited by the observed electro-acousto-optically induced transparency and absorption. Therefore, our devices serve as a paradigm for manipulating and controlling photonic BICs on a chip, which will enable many other applications of photonic BICs in the areas of microwave photonics and quantum information processing.
著者Yu ZJ, Sun XK
期刊名稱Light: Science and Applications
出版年份2020
月份1
卷號9
期次1
出版社Springer Nature [academic journals on nature.com]: Fully open access journals / Nature Publishing Group
文章號碼1
國際標準期刊號2047-7538
語言美式英語

上次更新時間 2021-17-04 於 23:39