Method to determine the anisotropy parameter g of a turbid medium

Kalpak Gupta; M. R. Shenoy

doi:10.1364/AO.57.007559

Applied Optics
Vol. 57,
Issue 26,
pp. 7559-7563
(2018)
•https://doi.org/10.1364/AO.57.007559

Method to determine the anisotropy parameter g of a turbid medium

Kalpak Gupta and M. R. Shenoy

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Kalpak Gupta and M. R. Shenoy, "Method to determine the anisotropy parameter g of a turbid medium," Appl. Opt. 57, 7559-7563 (2018)

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- Instrumentation and Measurements
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About this Article
History
- Original Manuscript: June 25, 2018
- Revised Manuscript: August 13, 2018
- Manuscript Accepted: August 13, 2018
- Published: September 10, 2018

Abstract

We present a method to determine the anisotropy parameter $g$ of a scattering liquid medium. A simple experimental setup is used to measure the scattered light from turbid samples, and a calibration curve is used to determine $g$ . The interaction coefficient of the medium is experimentally determined, and the calibration curve is obtained through Monte Carlo simulations. The method is tested for nonabsorbing solutions of polystyrene spheres, and the simulation results are found to agree with the experiments.

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		$μ_{t} = 0.1 {cm}^{- 1}$		$μ_{t} = 0.2 {cm}^{- 1}$		$μ_{t} = 0.3 {cm}^{- 1}$
Particle Diameter (nm)	$g$	$P_{s}$ ( $\times 10^{- 6}$ )	$P_{e}$ ( $\times 10^{- 6}$ )	$P_{s}$ ( $\times 10^{- 6}$ )	$P_{e}$ ( $\times 10^{- 6}$ )	$P_{s}$ ( $\times 10^{- 6}$ )	$P_{e}$ ( $\times 10^{- 6}$ )
100	0.0756	1.22	1.18	2.40	2.44	3.35	3.43
200	0.316	1.95	1.91	3.58	3.54	5.04	5.01
500	0.823	3.71	3.73	7.13	7.16	10.10	10.06
1000	0.918	3.83	3.90	7.54	7.47	10.50	10.88

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