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首页> 外文期刊>Optics Letters >Threshold reduction in a cyclic photonic molecule laser composed of identical microdisks with whispering-gallery modes
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Threshold reduction in a cyclic photonic molecule laser composed of identical microdisks with whispering-gallery modes

机译：由具有耳语画廊模式的相同微盘组成的循环光子分子激光器的阈值降低

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摘要

Lasing modes in cyclic photonic molecules (CPMs) composed of several identical thin semiconductor microdisks in free space are studied in a linear approximation. Maxwell's equations with exact boundary conditions and the radiation condition at infinity are considered as a specific eigenvalue problem that enables one to find natural frequencies and threshold gains. It is demonstrated that careful tuning of the distance between the disks in CPMs is able to drastically reduce the lasing thresholds of the whispering-gallery modes having small azimuth indices.
机译：在线性近似中研究了由自由空间中的几个相同的薄半导体微盘组成的循环光子分子（CPM）中的激光模式。具有精确边界条件和无限远处的辐射条件的麦克斯韦方程组被视为一种特定的特征值问题，使人们能够找到固有频率和阈值增益。已经证明，仔细调整CPM中的磁盘之间的距离可以大大降低具有较小方位角索引的耳语画廊模式的激光阈值。

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