Far-field nonlinear optical absorption in AgOx superresolution near-field structure

Fu Han Ho; Wei Yi Lin; Din Ping Tsai

doi:10.1117/12.427054

8 May 2001 Far-field nonlinear optical absorption in AgO_x superresolution near-field structure

Fu Han Ho, Wei Yi Lin, Din Ping Tsai

Proceedings Volume 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001); (2001) https://doi.org/10.1117/12.427054
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '01), 2001, Yokohama, Japan

Abstract

Nonlinear optical properties of cover glass/ZnS-SiO₂(130nm)/AgO_x(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.

Citation Download Citation

Fu Han Ho, Wei Yi Lin, and Din Ping Tsai "Far-field nonlinear optical absorption in AgO_x superresolution near-field structure", Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); https://doi.org/10.1117/12.427054

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