## Classification of modes in suspended-membrane, 19-missing-hole photonic-crystal microcavities

JOSA B, Vol. 22, Issue 5, pp. 1092-1099 (2005)

http://dx.doi.org/10.1364/JOSAB.22.001092

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### Abstract

Suspended-membrane 19-missing-hole microcavities in triangular lattice photonic crystals are numerically modeled by a three-dimensional finite-difference time-domain method. The resonance frequencies and the quality factors are calculated by interpolation of the discrete Fourier transformation series of the field with a Padé polynomial. The numerical results are compared with the photoluminescent spectra measured on the cavity of a nearly identical dimension. The symmetry properties of the defect modes are analyzed with the group theory, and resonance modes in the photonic-crystal cavities are identified as irreducible representations of the C_6v point group. The far-field radiations of the identified modes in the free space are also calculated by use of a vector Green's function. It is found that the numerical results agree very well with the experimental measurement in various aspects.

© 2005 Optical Society of America

**OCIS Codes**

(140.3460) Lasers and laser optics : Lasers

(230.3990) Optical devices : Micro-optical devices

**Citation**

Wan Kuang, Jiang R. Cao, Tian Yang, Sang-Jun Choi, Po-Tsung Lee, John D. O'Brien, and P. Daniel Dapkus, "Classification of modes in suspended-membrane, 19-missing-hole photonic-crystal microcavities," J. Opt. Soc. Am. B **22**, 1092-1099 (2005)

http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-5-1092

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