A nonlinear optical theory of gold nanorods

Jui-Teng Lin; Yu-Ling Hong; Chun-Lin Chang

doi:10.1117/12.841312

12 February 2010 A nonlinear optical theory of gold nanorods

Jui-Teng Lin, Yu-Ling Hong, Chun-Lin Chang

Proceedings Volume 7574, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VII; 75740A (2010) https://doi.org/10.1117/12.841312
Event: SPIE BiOS, 2010, San Francisco, California, United States

Abstract

A nonlinear theory for the optical properties of gold nanorods is presented. The refractive index sensitivity of the associated surface plasmon resonance is calculated to be 100-1000 nm/RIU for the aspect ratio range of 1-10. According to Gan's theory, the figure of merit, defined by the refractive index sensitivity divided by the FWHM value of the extinction coefficient, is calculated to be 1.0-12.0, which has a maximum value at the optimum aspect ratio of 3.5-4.5 depending on refractive index the surrounding medium.

Citation Download Citation

Jui-Teng Lin, Yu-Ling Hong, and Chun-Lin Chang "A nonlinear optical theory of gold nanorods", Proc. SPIE 7574, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VII, 75740A (12 February 2010); https://doi.org/10.1117/12.841312

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