Date:

2025-04-30

Title of Paper:

Double optical limiting in gold nanoshell: tuning from visible to infrared region by shell thickness

Journal:

APPLIED OPTICS

Summary:

APPLIED OPTICS / Vol. 47, No. 31 / 1 November 2008

Because of surface plasmon resonance (SPR) induced nonlinear absorption, there are two optical limiting
bands in gold nanoshells. The longer and shorter wavelength optical limiting bands correspond to the
symmetric and antisymmetric coupling resonance absorption modes, respectively. Theoretical calculations
based on quasi-static approximation show that the longer wavelength optical limiting band red
shifts from the visible to the infrared region by decreasing the shell thickness. A mechanism based
on polarization direction of a local electric field in a gold shell is investigated to describe the wavelength
shift of the optical limiting band. © 2008 Optical Society of America

Co-author:

Jian Zhu

Translation or Not:

No

Date of Publication:

2008-10-28