1. Random Lasing Action from Randomly Assembled ZnS Nanosheets.
- Author
-
Yang, H. Y., Yu, S. F., Yan, J., and Zhang, L. D.
- Subjects
ELECTRONIC excitation ,LASERS ,ULTRAVIOLET radiation ,LIGHT emitting diodes ,ZINC sulfide ,SEMICONDUCTORS ,OPTOELECTRONICS - Abstract
Lasing characteristics of randomly assembled ZnS nanosheets are studied at room temperature. Under 266-nm optical excitation, sharp lasing peaks emitted at around 332 nm with a linewidth less than 0.4 nm are observed in all directions. In addition, the dependence of lasing threshold intensity with the excitation area is shown in good agreement with the random laser theory. Hence, it is verified that the lasing characteristics of randomly assembled ZnS nanosheets are attributed to coherent random lasing action. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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