物理学进展2026，Vol.46Issue(1)：22-33,12.DOI:10.13725/j.cnki.pip.2026.01.003
回音壁激光的定向发射调控方法研究进展
Research advances in directional emission control methods for whispering-gallery mode lasers
摘要
Abstract
Whispering Gallery Mode(WGM)microcavity lasers have gained widespread attention in multiple research fields due to their advantages of small mode volume,ultra-high Q value,and low threshold.However,WGM microcavity lasers suffer from poor laser directionality,making the emission angle difficult to control.They may also be accompanied by multi-longitudinal-mode laser radiation,which significantly limits their practical applications.This paper systematically reviews the research dynamics in the field of WGM laser directional emission control.It focuses on four core control mechanisms:deformed microcavity design,scattering bodies and defect assistance,coupled microcavity systems,grating induction,and PT symmetry breaking.By deeply analyzing their working principles and making forward-looking predictions about the technological evolution trends in this field,this paper aims to provide theoretical support for researchers in related fields and promote the technological innovation of WGM laser directional emission mechanisms.关键词
回音壁模式微腔/定向发射/变形微腔/宇称-时间对称性Key words
WGM microcavity/directional emission/deformed microcavity/PT symmetry分类
信息技术与安全科学引用本文复制引用
王宇琛,钱修娴,徐晓凤,赵晓龙,王少强..回音壁激光的定向发射调控方法研究进展[J].物理学进展,2026,46(1):22-33,12.基金项目
感谢山东省自然科学基金(No.ZR2020QA078)的资助. （No.ZR2020QA078）
