Journal article
A nano-patterned photonic crystal laser with a dye-doped liquid crystal
Publication Details
Authors: | Ko, D.; Morris, S.; Lorenz, A.; Castles, F.; Butt, H.; Gardiner, D.; Qasim, M.; Wallikewitz, B.; Hands, P.; Wilkinson, T.; Amaratunga, G.; Coles, H.; Friend, R. |
Publisher: | AMER INST PHYSICS |
Publication year: | 2013 |
Journal: | Applied Physics Letters |
Pages range : | 051101 |
Journal acronym: | Appl. Phys. Lett. |
Volume number: | 103 |
Issue number: | 5 |
Number of pages: | 5 |
ISSN: | 0003-6951 |
DOI-Link der Erstveröffentlichung: |
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. (C) 2013 AIP Publishing LLC.
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.
