Numerical simulation of coherent backscattering and temporal intensity correlations in random media

Journal Article · Thu Nov 30 04:00:00 EST 2006 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2006V036N11ABEH013338· OSTI ID:21456906

Kuz'min, V L ^[1]; Meglinskii, I V ^[2]

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1. Saint Petersburg Institute of Commerce and Economics (Russian Federation)
2. Department of Physics, N G Chernyshevskii Saratov State University, Saratov (Russian Federation)

A review of studies on the numerical simulation of coherent effects in random media performed by using exact analytic results is presented. The simulation procedure is based on a comparison of the Monte-Carlo method and the iteration solution of the Bethe-Salpeter equation. The results of calculations of the time correlation function and the interference component of coherent backscattering for scalar and electromagnetic fields are described. The simulation results are compared for the first time with known generalisations of the Milne solution and are in good agreement with experimental data. The interference component of backscattered low-coherent radiation is calculated for the first time. The localisation of backscattered low-coherent laser radiation along the penetration depth is described. The theory and numerical simulation predict, in accordance with the experiment, a considerable broadening of the backscattering peak with decreasing the coherence length, which opens up essentially new possibilities for the use of this effect, especially for medical diagnostics. (special issue devoted to multiple radiation scattering in random media)

• OSTI ID: 21456906
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 11 Vol. 36; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKSCATTERING
BETHE-SALPETER EQUATION
CALCULATION METHODS
COHERENCE LENGTH
COHERENT RADIATION
COMPUTERIZED SIMULATION
CORRELATION FUNCTIONS
CORRELATIONS
DATA
DIMENSIONS
ELECTROMAGNETIC FIELDS
ELECTROMAGNETIC RADIATION
EQUATIONS
EXPERIMENTAL DATA
FUNCTIONS
INFORMATION
INTERFERENCE
ITERATIVE METHODS
LASER RADIATION
LENGTH
MILNE PROBLEM
MONTE CARLO METHOD
NUMERICAL DATA
PENETRATION DEPTH
RADIATIONS
RANDOMNESS
SCATTERING
SIMULATION