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

被引：12

作者：

Ko, Doo-Hyun ^{[1
]}

Morris, Stephen M. ^{[2
]}

Lorenz, Alexander ^{[2
]}

Castles, Flynn ^{[2
]}

Butt, Haider ^{[2
]}

Gardiner, Damian J. ^{[2
]}

Qasim, Malik M. ^{[2
]}

Wallikewitz, Bodo ^{[1
]}

Hands, Philip J. W. ^{[2
]}

Wilkinson, Timothy D. ^{[2
]}

Amaratunga, Gehan A. J. ^{[2
]}

Coles, Harry J. ^{[2
]}

Friend, Richard H. ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[2] Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

POLARIZATION MODE CONTROL; SYNTHETIC OPAL; ELECTRIC-FIELD; STOP BAND; GAP;

D O I：

10.1063/1.4816243

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 2013 AIP Publishing LLC.

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