Low-threshold and quasi-single-mode random laser within a submicrometer-sized ZnO spherical particle film
- 11 February 2013
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 102 (6)
- https://doi.org/10.1063/1.4792349
Abstract
An unique random laser exhibiting quasi-single-mode and low lasing threshold is developed by a homogenized submicrometer-sized zinc oxide particle film dispersed with intentionally introduced polymer particles as point defects. Such unique random lasing is dominantly initiated at the defect sites, although multi-mode peaks with a collapsed broad emission spectrum are observed at the defect-free sites as in the conventional random lasers. Thus our proposed simple structure can possibly provide the controllability of lasing properties even in random structures.Keywords
Funding Information
- Japan Science and Technology Corporation (22681011, 24651111)
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