Random laser action with nanostructures in a dye solution

被引：13

作者：

Kumar, Bhupesh ^{[1
]}

Patel, S. K. S. ^{[2
]}

Gajbhiye, N. S. ^{[2
]}

Thareja, Raj K. ^{[3
]}

机构：

[1] Indian Inst Technol Kanpur, Dept Phys, Kanpur 208016, UP, India

[2] Indian Inst Technol Kanpur, Dept Chem, Kanpur 208016, UP, India

[3] Indian Inst Technol Kanpur, Dept Phys, Kanpur 208016, UP, India

来源：

JOURNAL OF LASER APPLICATIONS | 2013年 / 25卷 / 04期

关键词：

nanostructures; photoluminescence; scattering; random laser; SCATTERING; EMISSION; NANOTUBES; LIGHT;

D O I：

10.2351/1.4809615

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoluminescence of Rhodamine B dye solution containing nanostructures of titanium dioxide (nanoparticles, nanorods, and nanotubes) was investigated at various optical excitation intensities. The stimulated emission was observed owing to multiple scattering of photons in the dye solution. The threshold intensity, emission wavelength, and profile of stimulated emission are different for different nanostructures. Single and double emission peaks were observed, respectively, at low (10(-3) M) and high (10(-2) M) dye concentrations. The stimulated emission characteristics with nanostructures dispersed in dye solution are attributed to the nonresonant scattering. (C) 2013 Laser Institute of America.

引用

页数：5

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