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Proceedings Paper

Bloch wave analysis for optical band structure of III-nitrides photonic crystals
Author(s): K. K. Ghosh; R. Ghosh; D. Ghosal
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Paper Abstract

The results of our analytical study on the formation of optical bands of III-Nitride Photonic Crystals are presented in this paper. The analysis is based on the propagation of Bloch waves through microstructured periodic dielectric materials, taking a model of 2D holey crystal of square lattice of GaN as example. Band gaps are opened up for both TE and TM modes in the square lattice for different d/a ratios, 'd' and 'a' being the diameter and lattice constant. The transmission bandwidth is seen to be wider for decreasing air -hole diameter irrespective of the polarization mode of the propagating light. Complete photonic gap may be found for material system of relatively higher contrast ratio.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 85492P (15 October 2012); doi: 10.1117/12.926762
Show Author Affiliations
K. K. Ghosh, Institute of Engineering and Management (India)
R. Ghosh, Institute of Engineering and Management (India)
D. Ghosal, S.E.R/M.H.S.S (India)

Published in SPIE Proceedings Vol. 8549:
16th International Workshop on Physics of Semiconductor Devices
Monica Katiyar; B. Mazhari; Y N Mohapatra, Editor(s)

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