Title :
Linear and nonlinear optical properties of nano-porous gold film
Author :
Akbari, Mohammad ; Ishihara, Takuya
Author_Institution :
Dept. of Phys., Tohoku Univ., Sendai, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
We investigate optical response of nano-porous gold (NPG) in the visible frequencies. NPG film is obtained from 50:50 alloy of gold and silver by applying concentrated nitric acid. Reflectivity reduces significantly in the red range of the spectrum, which allows localized surface plasmon excitation without electronic interband transition. Possibility of photorectification upon surface plasmon excitation is discussed.
Keywords :
gold alloys; nanoporous materials; nonlinear optics; silver alloys; surface plasmons; Ag; Au; NPG film; concentrated nitric acid; electronic interband transition; localized surface plasmon excitation; nanoporous gold film; nonlinear optical properties; optical response; photorectification; reflectivity; visible frequencies; Gold; Nonlinear optics; Optical films; Optical imaging; Optical reflection; Optical ring resonators; Plasmons;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600410
