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Proceedings Paper

Fabrication of tunable grating with silver nanoparticles
Author(s): Tung-Kai Liu; Wen-Chi Hung; Ming-Shan Tsai; Yong-Chang Tsao; I-Min Jiang
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Paper Abstract

A tunable grating was fabricated with silver nanoparticles in a gradient increase of nanoparticle size along the grating direction in this study. Owing to the gradual increment of the nanoparticle size, the first order diffraction efficiencies of incident light presented as a function of the impinging position of the probe beam. Via a probe of monochromatic light ranged from 450 to 750 nm, the positive and the negative first order diffraction efficiency were measured by rotating the optical detector. It was noted that the maximum positive and negative diffraction efficiency appeared at around 600 and 700 nm, respectively. The difference in the peak wavelength of these two diffraction efficiency exhibited the diffraction property was strongly affected by the gradient variation of the localized surface plasmon effect. The first order diffraction efficiency spectra affected by the various excitations of the localized surface plasmons with the taper size distribution of nanoparticles were the special discovery of the study and may lead to a potential development in light modulation and manipulation.

Paper Details

Date Published: 17 June 2009
PDF: 9 pages
Proc. SPIE 7390, Modeling Aspects in Optical Metrology II, 73901A (17 June 2009); doi: 10.1117/12.827447
Show Author Affiliations
Tung-Kai Liu, National Sun Yat-Sen Univ. (Taiwan)
Wen-Chi Hung, National Sun Yat-Sen Univ. (Taiwan)
Ming-Shan Tsai, National Chiayi Univ. (Taiwan)
Yong-Chang Tsao, National Chiayi Univ. (Taiwan)
I-Min Jiang, National Sun Yat-Sen Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7390:
Modeling Aspects in Optical Metrology II
Harald Bosse; Bernd Bodermann; Richard M. Silver, Editor(s)

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