Influence of Femtosecond Laser Ablated Silver Nanoparticles on the Nonlinear Optical Properties of Basic Fuchsin dye

被引：5

作者：

Pathrose, Bini ^{[1
]}

Nampoori, V. P. N. ^{[1
]}

Radhakrishnan, P. ^{[1
]}

Mujeeb, A. ^{[1
]}

机构：

[1] Cochin Univ Sci & Technol, Int Sch Photon, Cochin, Kerala, India

来源：

PLASMONICS | 2017年 / 12卷 / 04期

关键词：

Femtosecond laser; Laser ablation; Basic Fuchsin; Two photon absorption; optical limiting; Limiting threshold; METAL-ENHANCED FLUORESCENCE; GOLD NANOPARTICLES; SIZE; SURFACE; AG; PARTICLES; ABSORPTION; DEPENDENCE; REDUCTION; RESONANCE;

D O I：

10.1007/s11468-016-0346-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We investigate the linear and nonlinear optical properties of Basic Fuchsin influenced by femtosecond laser ablated silver nanoparticles in deionised water. Single beam z-scan technique using a Q-switched Nd:YAG laser (Spectra PhysicsLAB-1760, 532 nm, 7 ns, 10 Hz) is used for the present study. Quenching of fluorescence is observed in the presence of silver nanoparticles. Transmission electron microscopic observation reveals that the nanoparticles are spherical in shape, with an average size of 7 nm. The samples show self-defocusing nonlinearity and better nonlinear absorption behavior in the presence of silver sol. The nonlinear absorption varies with varying input fluence and concentration. The results show that the variations in the nonlinear parameters are also due to the surface plasmon resonance of silver nanoparticles. The nonlinearity of the dye is increased in the presence of silver nanoparticles, which makes the material suitable for various photonic and optoelectronic applications.

引用

页码：953 / 959

页数：7

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