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题名: Mode characteristics for equilateral triangle optical resonators
作者: Huang YZ;  Chen Q;  Guo WH;  Lu QY;  Yu LJ
发表日期: 2006
摘要: Mode characteristics of equilateral triangle resonators (ETRs) are analyzed based on the symmetry operation of the point group C-3v. The results show that doubly degenerate eigenstates can be reduced to the A(1) and A(2) representations of C-3v, if the longitudinal mode number is a multiple of 6; otherwise, they form the E irreducible representation Of C-3v. And the one-period length for the mode light ray is half of the perimeter of the ETR. Mode Q-factors are calculated by the finite-difference time-domain (FDTD) technique and compared with those calculated from far-field emission based on the analytical near-field pattern for TE and TM modes. The results show that the far-field emission based on the analytical field distribution can be used to estimate the mode Q-factor, especially for TM modes. FDTD numerical results also show that Q-factor of TE modes reaches maximum value as the longitudinal mode number is a multiple of 7. In addition, photoluminescence spectra and measured Q-factors are presented for fabricated ETR with side lengths of 20 and 30 mu m, and the mode wavelength intervals are compared with the analytical results.
KOS主题词: microcavities;  Fabry-Perot resonators;  Semiconductor lasers;  Pade approximation;  Q factors;  waveguide;  Lasers;  frequencies
刊名: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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Huang YZ; Chen Q; Guo WH; Lu QY; Yu LJ .Mode characteristics for equilateral triangle optical resonators ,IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS,2006,12(1):59-65
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