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Band-edge and random lasing in paintable liquid crystal emulsions
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10.1063/1.3574915
/content/aip/journal/apl/98/14/10.1063/1.3574915
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/14/10.1063/1.3574915
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Transmission and emission spectra of the pre-emulsified dye-doped chiral nematic mixture, indicating dye absorbance around 532 nm and the long band-edge coinciding with the fluorescence gain maximum.

Image of FIG. 2.
FIG. 2.

Deswelling of LC emulsion films forms oblate LC droplets. Small droplets give rise to nonresonant random lasing (a) while large droplets form a Grandjean alignment suitable for band-edge lasing (c). Polarized microscopy images of the droplets are shown in (b) and (d).

Image of FIG. 3.
FIG. 3.

Emission spectra for broad linewidth random lasing from small droplets (a) and narrow linewidth band-edge lasing from large droplets (b). Insets show Lorentzian and Gaussian fitting, respectively. Lasing thresholds are shown in (c) and (d).

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/content/aip/journal/apl/98/14/10.1063/1.3574915
2011-04-04
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Band-edge and random lasing in paintable liquid crystal emulsions
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/14/10.1063/1.3574915
10.1063/1.3574915
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