Investigation of whispering gallery mode dependence on cavity geometry of quasiperiodic photonic crystal microcavity lasers

被引：21

作者：

Lee, Po-Tsung

Lu, Tsan-Wen

Tsai, Feng-Mao

Lu, Tien-Chang

机构：

[1] Natl Chiao Tung Univ, Dept Photon, Hsinchu 300, Taiwan

[2] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 300, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 23期

关键词：

D O I：

10.1063/1.2402894

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dodecagonal (12-fold) quasiperiodic photonic crystal (DQPC) microcavity lasers sustaining whispering gallery mode (WGM) are fabricated. Lasing characteristics of DQPC D2 microcavity lasers are obtained and compared with triangular lattice D2 photonic crystal (PC) lasers, and ultralow threshold is obtained. The strong WGM mode dependence on 12 nearest airholes of DQPC D2 microcavity and its fabrication tolerance is investigated and discussed by randomly varying the lattice of two separate regions. This mode dependence also indicates that one can enhance a WGM in different PC microcavities by modifying the cavity boundary to be circular. (c) 2006 American Institute of Physics.

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页数：3

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