激光阈值
极化(电化学)
激光器
光子
光学
光电子学
物理
材料科学
化学
物理化学
作者
Zhiy Yuan,Shih‐Hsiu Huang,Zhen Qiao,Pin Chieh Wu,YU-CHENG CHEN
出处
期刊:Optica
[The Optical Society]
日期:2023-02-13
卷期号:10 (2): 269-269
被引量:2
标识
DOI:10.1364/optica.478616
摘要
Manipulating polarization states of microlasers is essentially important in many emerging optical and biological applications. Strategies have been focused on using external optical elements or surface nanostructures to control the polarization state of laser emission. Here we introduce a strategy for manipulation of laser polarization based on metasurfaces through round trips of photons confined inside an active optical cavity. The roles of intracavity metasurfaces and light–meta-atom interactions were investigated under a stimulated emission process in a microcavity. Taking advantage of strong optical feedback produced by the Fabry–P e ´ rot optofluidic microcavity, light–meta-atom interactions are enlarged, resulting in polarized lasing emission with high purity and controllability. Depending on the metasurface structural orientation, the polarization state of lasing emission can be actively modulated as linearly polarized or elliptically polarized with different degrees of circular polarization at a source within the microcavity. This study provides insight into fundamental laser physics, opening possibilities by bridging metasurfaces into microlasers.
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