Faraday-Tyndall effect of gold colloids

Author

Shang-Yang Yu ; Yun-Ju Chen ; Jiunn-Woei Liaw

Author_Institution

Dept. of Mech. Eng., Chang Gung Univ., Taoyuan, Taiwan

fYear

2015

fDate

4-6 May 2015

Firstpage

1

Lastpage

3

Abstract

We measured the divergence angles of a CW laser beam passing through gold colloids with different concentrations to quantitatively characterize Faraday-Tyndall effect. Our results show that the divergence angles of 532-nm and 785-nm CW laser beams through gold nanoparticles (GNPs) colloid are increased as the concentration of GNPs increases. The increased divergence angle of GNP at 532 nm is more significant than that at 785 nm, because the surface plasmon resonance of GNP is at 549 nm. Moreover, the effects of different-sized GNPs will be studied.

Keywords

Faraday effect; angular measurement; colloids; gold; laser beams; laser variables measurement; light scattering; nanoparticles; nanophotonics; surface plasmon resonance; Au; CW laser beam; Faraday-Tyndall effect; GNP size; divergence angle measurement; gold nanoparticles colloid; surface plasmon resonance; wavelength 532 nm; wavelength 549 nm; wavelength 785 nm; Biomedical measurement; Economic indicators; Gold; Laser beams; Measurement by laser beam; Plasmons; Wavelength measurement; Faraday-Tyndall effect; divergence angle; light scattering; surface plasmon resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Next-Generation Electronics (ISNE), 2015 International Symposium on

Conference_Location

Taipei

Type

conf

DOI

10.1109/ISNE.2015.7131968

Filename

7131968