Ultrafast Optical Switching in a Silver Nanoparticle System
Hideyuki InouyeInstitute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8573, JapanKōichiro TanakaDepartment of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, JapanIchiro TanahashiCentral Research Laboratories., Matsushita Electric Ind. Co., Ltd., Hikaridai, Seika-cho, Kyoto 619-0237, JapanToshiaki HattoriInstitute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8573, JapanHiroki NakatsukaInstitute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
2000en
ABI
Abstract
An ultrafast response of a silver nanoparticle system, as fast as 360 fs, was observed in a femtosecond optical-Kerr-shutter experiment. The ultrafast response is attributed to a self-diffraction of a pump pulse due to transient grating. We estimated χ (3) of the silver nanoparticle system to be 1.5 × 10 -7 esu in the femtosecond region.
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