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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 15 — Aug. 1, 2013
  • pp: 2855–2857

Effect of gold nanoparticles on depolarization characteristics of Intralipid tissue phantom

M. K. Swami, H. S. Patel, P. Geethu, A. Uppal, P. K. Kushwaha, and P. K. Gupta  »View Author Affiliations


Optics Letters, Vol. 38, Issue 15, pp. 2855-2857 (2013)
http://dx.doi.org/10.1364/OL.38.002855


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Abstract

We report results of studies on the effect of different shapes and sizes of gold nanoparticles (GNPs) on the depolarization characteristics of Intralipid tissue phantoms. For a given extinction coefficient, the absorption characteristics of the GNPs contributed more to the depolarization of the turbid medium, and the contribution of scattering was significant only for the larger-sized particles. For rod-shaped GNPs, their depolarization plays an important role in the low scattering regime in which the depolarization properties of the nanoparticles (NPs) dominate in the turbid medium even if the contribution of the scattering from the NPs is about an order of magnitude less. For highly scattering samples, GNP absorption significantly modulates the depolarization spectra of the turbid medium.

© 2013 Optical Society of America

OCIS Codes
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(240.6680) Optics at surfaces : Surface plasmons
(290.4210) Scattering : Multiple scattering
(290.5855) Scattering : Scattering, polarization

ToC Category:
Scattering

History
Original Manuscript: April 3, 2013
Revised Manuscript: June 12, 2013
Manuscript Accepted: June 28, 2013
Published: July 30, 2013

Virtual Issues
Vol. 8, Iss. 9 Virtual Journal for Biomedical Optics

Citation
M. K. Swami, H. S. Patel, P. Geethu, A. Uppal, P. K. Kushwaha, and P. K. Gupta, "Effect of gold nanoparticles on depolarization characteristics of Intralipid tissue phantom," Opt. Lett. 38, 2855-2857 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-15-2855


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