
Proceedings Paper
Rayleigh scattering correlation spectroscopy on diffusion dynamics of nanoparticles under intense laser irradiationFormat | Member Price | Non-Member Price |
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Paper Abstract
Rayleigh scattering correlation microspectroscopy is developed and applied to study diffusion dynamics of some
nanospheres in water. It was clearly found that the diffusion constant of gold nanoparticles decreased with increasing
excitation laser power at the excitation wavelength of higher absorption cross section. This behavior was explained in
terms of a coupling between laser trapping by the scattering excitation laser itself and laser heating of the particle. In the
case of non-absorbing nanospheres such as silica and polystyrene, the excitation power dependence can be ascribed only
to the laser trapping. Experimental setup is introduced, theoretical formulation is described, and future development of this measurement is considered.
Paper Details
Date Published: 12 September 2013
PDF: 12 pages
Proc. SPIE 8810, Optical Trapping and Optical Micromanipulation X, 88102T (12 September 2013); doi: 10.1117/12.2023022
Published in SPIE Proceedings Vol. 8810:
Optical Trapping and Optical Micromanipulation X
Kishan Dholakia; Gabriel C. Spalding, Editor(s)
PDF: 12 pages
Proc. SPIE 8810, Optical Trapping and Optical Micromanipulation X, 88102T (12 September 2013); doi: 10.1117/12.2023022
Show Author Affiliations
Ping-Yu Hee, National Chiao Tung Univ. (Taiwan)
Takayuki Uwada, Josai Univ. (Japan)
Kazunori Okano, National Chiao Tung Univ. (Taiwan)
Takayuki Uwada, Josai Univ. (Japan)
Kazunori Okano, National Chiao Tung Univ. (Taiwan)
Atsushi Miura, National Chiao Tung Univ. (Taiwan)
Hiroshi Masuhara, National Chiao Tung Univ. (Taiwan)
Hiroshi Masuhara, National Chiao Tung Univ. (Taiwan)
Published in SPIE Proceedings Vol. 8810:
Optical Trapping and Optical Micromanipulation X
Kishan Dholakia; Gabriel C. Spalding, Editor(s)
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