Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3251078
Title: Two-directional lasing from a dye-doped two-dimensional hexagonal photonic crystal made of holographic polymer-dispersed liquid crystals
Authors: Luo, D.
Sun, X.W.
Dai, H.T.
Liu, Y.J.
Yang, H.Z.
Ji, W. 
Issue Date: 2009
Source: Luo, D., Sun, X.W., Dai, H.T., Liu, Y.J., Yang, H.Z., Ji, W. (2009). Two-directional lasing from a dye-doped two-dimensional hexagonal photonic crystal made of holographic polymer-dispersed liquid crystals. Applied Physics Letters 95 (15) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3251078
Abstract: Lasing actions are demonstrated in two high-symmetry directions (M and K) of a two-dimensional hexagonal photonic crystal from dye-doped holographic polymer-dispersed liquid crystals. The group velocity anomaly, which is peculiar to two-dimensional and three-dimensional photonic crystals, leads to substantial enhancement in local fields in the two-dimensional photonic crystal with a low-index contrast. The difference on the lasing thresholds between the two directions is interpreted as the result of different group velocities of the flat bands where laser oscillation occurred. © 2009 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/98479
ISSN: 00036951
DOI: 10.1063/1.3251078
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