Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1659638 | Surface and Coatings Technology | 2010 | 5 Pages |
Abstract
Multifunctional SiO2 particles with charged and fluorescent properties were synthesized and their films with different thickness were prepared using electrophoretic deposition for random lasing. In case of 50-μm-thick film, when the excitation energy density increases above 25 μJ/cm2, spectral narrowing and nonlinear increasing of intensity were observed. To get more information on lasing, single-shot spectrum was measured. Finally, the dependence of the lasing behavior, including the recognition of the existence of a threshold on the film thickness was demonstrated.
Keywords
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Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Hee-Won Shin, Seung-Lim Oh, Laurent Galmiche, Béatrice Lama, Pierre Audebert, Yong-Rok Kim,