A tunable blue random laser based on solid waveguide gain films with plasmonics and scatters

A tunable blue random laser based on solid waveguide gain films with silver nanoparticles (NPs) and SiO2 NPs is demonstrated. Localized surface plasmon resonance (LSPR) property and multiple scattering are proven playing an important role simultaneously. The tunability of the blue random laser is re...

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Bibliographic Details
Published in:Journal of alloys and compounds 2019-06, Vol.790, p.558-562
Main Authors: Li, Xueyang, Hong, Feng, Wang, Shiping, He, Shan, Jin, Shengye, Guo, Jingwei, Yuan, Hong, Lv, Qipeng, Hu, Shu, Wang, Pengyuan, Jin, Yuqi, Sang, Fengting
Format: Article
Language:English
Subjects:
Blue random laser
Laser applications
Lasers
Localized surface-plasmon resonance
Multiple scattering
Nanoparticles
Plasmonics
Resonance scattering
Silicon dioxide
Silver
Tunable
Tunable lasers
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Summary:A tunable blue random laser based on solid waveguide gain films with silver nanoparticles (NPs) and SiO2 NPs is demonstrated. Localized surface plasmon resonance (LSPR) property and multiple scattering are proven playing an important role simultaneously. The tunability of the blue random laser is realized by simply roughing and changing the thickness of the solid waveguide gain films. To our knowledge, it is the first time using this method to achieve a wide wavelength tuning range of ∼24 nm. •Tunable blue random laser based on solid waveguide gain films.•Plasmonics and scatterers are playing an important role.•Ag nanoparticles with diameters of 4.8 nm are harmful to random lasing.•Emission wavelength can be tuned with changing the thickness of gain films.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2019.03.202