A nano-patterned photonic crystal laser with a dye-doped liquid crystal

Title
A nano-patterned photonic crystal laser with a dye-doped liquid crystal
Authors
고두현Stephen M. MorrisAlexander LorenzFlynn CastlesHaider ButtDamian J. GardinerMalik M. QasimBodo WallikewitzPhilip J. W. HandsTimothy D. WilkinsonGehan A. J. AmaratungaHarry J. ColesRichard H. Friend
Keywords
Photonic crystal; laser; nanopattern
Issue Date
2013-07
Publisher
Applied physics letters
Citation
VOL 103, NO 5, 051101-1-051101-5
Abstract
Covering a nano-patterned titanium dioxide photonic crystal (PC) within a well-oriented film of dye-doped liquid crystal (LC), a distributed feedback laser is constructed whereby the emission characteristics can be manipulated in-situ using an electric field. This hybrid organic-inorganic structure permits simultaneous selectivity of both the beam pattern and laser wavelength by electrical addressing of the LC director. In addition, laser emission is obtained both in the plane and normal to the PC. Along with experimental data, a theoretical model is presented that is based upon an approximate calculation of the band structure of this birefringent, tuneable laser device.
URI
http://pubs.kist.re.kr/handle/201004/46335
ISSN
00036951
Appears in Collections:
KIST Publication > Article
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