Random laser rn ZnO powder pumped by picosecond pulses

Authors:	Nguyen, The Binh Pham, Van Thin Pham, Thu Nga Nguyen, Anh Tuan
Keywords:	Random laser;Resonant feedback;Monodisperse colloidal spheres;Hydrolysis
Issue Date:	2011
Publisher:	H. : ĐHQGHN
Series/Report no.:	Vol. 27;No. 1 (2011)
Abstract:	We report ow studies of random laser from ZnO powder at room temperature. The powder of ZnO colloidal spheres was synthesized by hydrolysis of Zinc acetate dehydrate. The random lasing around 380nm was produced from a layer of the ZnO powder pumped by the third harmonics (:SSnm) of a picosecond mode locked Nd:YAG laser (1L2143B-- Ekspla). Above a pump threshold, discrete lasing modes of random laser action with resonant feedback appeared in the emission speckum. Our experimental results show that random lasing can be produced from a layer of ZnO spherical nanoparticle powder on glass substrate.
Description:	p. 9-13
URI:	http://repository.vnu.edu.vn/handle/VNU_123/56486
ISSN:	2588-1124
Appears in Collections:	Mathematics and Physics