WGM Coupling Behavior of Two-Dimensional Quasi-Periodic Photonic Crystal Micro-Cavity

• Main Authors: Chia-Ming Yu, 游嘉銘
• Other Authors: Po-Tsung Lee
• Format: Others
• Language: en_US
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/89082156087749439516

碩士 === 國立交通大學 === 顯示科技研究所 === 95 === We investigate and discuss the strong whispering gallery mode (WGM) mode dependence on inner-most air-holes of Dodecagonal quasi-periodic photonic crystal (DQPC) D2 (formed by 7 missing air-holes) micro-cavity and its fabrication tolerance by randomly varying the lattice of two separate regions. Hence, we design and fabricate DQPC micro-cavity lasers sustaining WGM. And we measure the basic lasing characteristic of two separate regions to verify WGM mode dependence. For comparison, we also fabricate traditional triangular PC D2 micro-cavity with the same lattice variation regions. From the results between DQPC D2 micro-cavity and PC D2 micro-cavity, we can verify the WGM mode dependence on the inner-most air-holes of DQPC D2 micro-cavity again. Next, we extend the WGM mode in DQPC twin-cavity and triple-cavity. And we investigate the coupling behavior in these structures. We calculated resonance spectrum and resonance mode profiles of the DQPC twin and triple-cavity by 3D finite-difference time-domain (FDTD) method. And we fabricate the real device of DQPC twin and triple-cavity. The basic characteristics of DQPC twin and triple-cavity are measured by a micro-photoluminescence system. The measurement results are compared with the 3D FDTD simulation results.