Spectral dependence of nonlinear absorption in ordered silver metallic nanoprism arrays

Ordered metallic nanoprism arrays have been proposed as novel and versatile systems for the observation of nonlinear effects such as nonlinear absorption . The study of the effect of the local field reinforcement on the fast optical third order nonlinear response around the Surface Plasmon Resonance...

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Bibliographic Details
Published in:Scientific reports 2017-07, Vol.7 (1), p.5307-9, Article 5307
Main Authors: Sánchez-Esquivel, Héctor, Raygoza-Sánchez, Karen Y., Rangel-Rojo, Raúl, Gemo, Emanuele, Michieli, Niccolò, Kalinic, Boris, Reyes-Esqueda, Jorge Alejandro, Cesca, Tiziana, Mattei, Giovanni
Format: Article
Language:English
Subjects:
140/125
639/624/1107/1109
639/624/399/354
639/624/400/1021
639/624/400/385
639/925/927/1021
Absorption
Humanities and Social Sciences
Information processing
Lasers
multidisciplinary
Nonlinear systems
Resonance
Science
Science (multidisciplinary)
Silver
Surface plasmon resonance
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Summary:Ordered metallic nanoprism arrays have been proposed as novel and versatile systems for the observation of nonlinear effects such as nonlinear absorption . The study of the effect of the local field reinforcement on the fast optical third order nonlinear response around the Surface Plasmon Resonance is of great interest for many plasmonic applications. In this work, silver nanoprism arrays have been synthesized by the nanosphere lithography method. A low repetition rate tunable picosecond laser source was used to study the irradiance and wavelength dependence of the nonlinear absorption properties around the dipolar and quadrupolar resonances of the nanoarray with the use of the z - scan technique . The irradiance dependence of the on-resonance nonlinearity was studied, and a spectral region where nonlinear absorption is negligible was identified. This is important for the possible application of these materials in optical information processing devices.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-04814-2