Two-directional lasing from a dye-doped two-dimensional hexagonal photonic crystal made of holographic polymer-dispersed liquid crystals

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
Citation:	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
Appears in Collections:	Staff Publications

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