Fabrication of tunable grating with silver nanoparticles

Tung-Kai Liu; Wen-Chi Hung; Ming-Shan Tsai; Yong-Chang Tsao; I-Min Jiang

doi:10.1117/12.827447

17 June 2009 Fabrication of tunable grating with silver nanoparticles

Tung-Kai Liu, Wen-Chi Hung, Ming-Shan Tsai, Yong-Chang Tsao, I-Min Jiang

Proceedings Volume 7390, Modeling Aspects in Optical Metrology II; 73901A (2009) https://doi.org/10.1117/12.827447
Event: SPIE Europe Optical Metrology, 2009, Munich, Germany

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.

Citation Download Citation

Tung-Kai Liu, Wen-Chi Hung, Ming-Shan Tsai, Yong-Chang Tsao, and I-Min Jiang "Fabrication of tunable grating with silver nanoparticles", Proc. SPIE 7390, Modeling Aspects in Optical Metrology II, 73901A (17 June 2009); https://doi.org/10.1117/12.827447

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