Wavelength- and polarization-dependent nonlinear optical properties of plasmonic nanoprism arrays

被引:1
|
作者
Cesca, Tiziana [1 ]
Sanchez Esquivel, Hector [2 ]
Gemo, Emanuele [1 ]
Michieli, Niccolo [1 ]
Kalinic, Boris [1 ]
Garcia Ramirez, Emma V. [3 ]
Gomez Cervantes, Juan M. [3 ]
Rangel Rojo, Raul [2 ]
Reyes Esqueda, Jorge A. [3 ]
Mattei, Giovanni [1 ]
机构
[1] Univ Padua, Dept Phys & Astron, Via Marzolo 8, I-35131 Padua, Italy
[2] Ctr Invest Cient & Educ Super Ensenada, Div Fis Aplicada, Carretera Ensenada Tijuana 3918, Ensenada 22860, Baja California, Mexico
[3] Univ Nacl Autonoma Mexico, Inst Fis, Circuito Invest Cient, Ciudad Univ, Mexico City 4510, DF, Mexico
来源
关键词
Plasmonic nanoprism arrays; nonlinear optical properties; third-order nonlinear effects; z-scan; METAL NANOPARTICLES; ENHANCEMENT; BEAM;
D O I
10.1117/12.2227065
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The nonlinear absorption properties of Ag nanoprism arrays synthesized by nanosphere lithography have been investigated by z-scan measurements. A picoseconds and low repetition rate laser source has been used to excite the electronic component of the nonlinear optical response without inducing thermal effects on the samples. Spectral effects in the nonlinear absorption response have been highlighted by performing measurements at different wavelengths, matching the laser wavelength with the dipolar and the quadrupolar surface plasmon resonances of the synthesized nanoarrays. The nonlinear absorption properties of the samples have been also investigated as a function of the polarization of the laser source and dichroism effects have been revealed.
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页数:6
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