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Study of bare, sintered, coated and inverted opals for photonic band gap properties at visible wavelengths

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Title Study of bare, sintered, coated and inverted opals for photonic band gap properties at visible wavelengths
 
Creator RAMARAO, V
PRASAD, T
 
Subject spontaneous emission
conducting polymers
sio2 nanospheres
crystals
dye
molecules
systems
photonic crystals
opals
sintering
transfer matrix method
 
Description We have performed calculations using the Transfer Matrix method to study the photonic, band gap properties of bare opals of different diameters, different thicknesses, sintered opals with filling fractions varying between 0.74 and 1.00, partial and complete coating with semiconducting GaN and lastly, inverted opals. Two prominent directions [100] and [111] have been analyzed. Sintering improves the gap and shifts the energy range of its occurrence, while partial coating gives a better bandgap than complete coating. Inverted opals with semiconductor background shows a gap with transmission decreasing to much lower values, as expected due to an improvement in dielectric contrast.
 
Publisher SPIE-INT SOC OPTICAL ENGINEERING
 
Date 2011-10-23T21:45:39Z
2011-12-15T09:11:07Z
2011-10-23T21:45:39Z
2011-12-15T09:11:07Z
2001
 
Type Proceedings Paper
 
Identifier PHOTONICS TECHNOLOGY IN THE 21ST CENTURY,4598,86-93
0-8194-4328-X
0277-786X
http://dx.doi.org/10.1117/12.447095
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15245
http://hdl.handle.net/100/1869
 
Source Conference on Photonics Technology in the 21st Century,SINGAPORE, SINGAPORE,NOV 27-29, 2001
 
Language English