27 April 2016 Wavelength- and polarization-dependent nonlinear optical properties of plasmonic nanoprism arrays
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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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Tiziana Cesca, Tiziana Cesca, Hectór Sánchez Esquivel, Hectór Sánchez Esquivel, Emanuele Gemo, Emanuele Gemo, Niccolò Michieli, Niccolò Michieli, Boris Kalinic, Boris Kalinic, Emma V. García Ramírez, Emma V. García Ramírez, Juan M. Gómez Cervantes, Juan M. Gómez Cervantes, Raul Rangel Rojo, Raul Rangel Rojo, Jorge A. Reyes Esqueda, Jorge A. Reyes Esqueda, Giovanni Mattei, Giovanni Mattei, "Wavelength- and polarization-dependent nonlinear optical properties of plasmonic nanoprism arrays", Proc. SPIE 9894, Nonlinear Optics and its Applications IV, 98941A (27 April 2016); doi: 10.1117/12.2227065; https://doi.org/10.1117/12.2227065

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