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Proceedings Paper

Far-field nonlinear optical absorption in AgOx superresolution near-field structure
Author(s): Fu Han Ho; Wei Yi Lin; Din Ping Tsai
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Paper Abstract

Nonlinear optical properties of cover glass/ZnS-SiO2(130nm)/AgOx(15nm)/ZnS- SiO2(40nm) is studied by using a focused continuous-wave (CW) He-Ne laser ((lambda) equals632.8 nm) and a pulse laser ((lambda) equals532 nm, pulse width 0.7 ns, repetition rate 15.79 kHz) with a confocal Z-scan system. The transmission confocal Z-scan shows that the sample undergoes a phase transition at different incident intensities when the light source is changed. High reflectance happens at the focusing on AgOx film. The phase transition of the sample at higher incident laser power is due to silver oxide dissociating by the laser heating process.

Paper Details

Date Published: 8 May 2001
PDF: 8 pages
Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); doi: 10.1117/12.427054
Show Author Affiliations
Fu Han Ho, National Taiwan Univ. (Taiwan)
Wei Yi Lin, National Chung-Cheng Univ. (Taiwan)
Din Ping Tsai, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 4416:
Optical Engineering for Sensing and Nanotechnology (ICOSN 2001)
Koichi Iwata, Editor(s)

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