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Conferences > CLEOPR > 2017 > PSIV > s1302
  • 2017 Conference on Lasers and Electro-Optics Pacific Rim
  • (Optica Publishing Group, 2017),
  • paper s1302

Femtosecond Pulsed Z-scan Determination of Nonlinear Optical Absorption of Highly Close-packed Silver Nanoparticle Films

Tsong-Ru Tsai, Chun-Ping Lin, I-Chih Ni, and Shien-Der Tzeng

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Abstract

The nonlinear optical properties of highly close-packed (fill fraction ~0.74) Ag nanoparticle films were examined according to femtosecond Z-scan measurements. The open-aperture Z-scan traces exhibited the behavior of saturable absorption, which was ascribed to the excitation-induced broadening of the surface plasmon resonance. Furthermore, exceptionally high nonlinear optical absorption coefficients β were found to range from -10−3 to -10−5 cm/W.

© 2017 Optical Society of America

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