Spectral evolution of distributed feedback laser of gold nanoparticles doped solid-state dye laser medium

被引：2
|
作者：
An, N. T. M. [1 ]
Lien, N. T. H. [1 ,2 ]
Hoang, N. D. [2 ]
Nghia, N. T. [2 ]
Hoa, D. Q. [1 ,2 ]
机构：
[1] Vietnam Acad Sci & Technol, Grad Univ Sci & Technol, Hanoi 10000, Vietnam
[2] Vietnam Acad Sci & Technol, Inst Phys, Hanoi 10000, Vietnam
来源：
JOURNAL OF APPLIED PHYSICS | 2017年 / 122卷 / 13期
关键词：
SATURABLE ABSORBER; PULSE GENERATION; ENERGY-TRANSFER; FEMTOSECOND;
D O I：
10.1063/1.4995312
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Characteristics of suppressed relaxation oscillation of a distributed feedback dye laser (DFDL) based on the energy transfer process in a mixture of spherical gold nanoparticles-doped solid-state polymethylmetacrylate dissolved 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran dye was theoretically and experimentally studied. Single pulse generation regime of the DFDL can be obtained with a suitable gold nanoparticle concentration and ratio of pump power over lasing threshold. Numerical analysis and experimental approach showed that in this regime, the first-pulse laser pulsewidth is rather unchanged while varying the gold nanoparticles concentration in the range of 2.0 x 10(9)-2.0 x 10(10) par cm(-3). The enhancement of first pulse and the suppression of the secondary pulses by bi-direction energy transfer of spherical gold nanoparticles were experimentally observed. Published by AIP Publishing.
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页数：6
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