The interference component of low-coherent radiation backscattering

Autor:	V. L. Kuzmin, I. V. Meglinskiĭ, A. Yu. Azbel
Rok vydání:	2007
Předmět:	Physics Computer simulation business.industry Monte Carlo method Coherent backscattering Radiation Interference (wave propagation) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Coherence length Optics business Penetration depth Ultrashort pulse
Zdroj:	Optics and Spectroscopy. 102:623-629
ISSN:	1562-6911 0030-400X
DOI:	10.1134/s0030400x07040212
Popis:	An interference component of backscattering of low-coherent radiation is calculated for the first time based on the previously developed approach consisting of direct simulation of the Bethe-Salpeter equation in terms of the Monte Carlo method. It is shown that, upon an increase in the spatial coherence length, it plays the role of the characteristic scale of the backscattering instead of the transport length. The effect of localization of backscattering of an ultrashort pulse in relation to the penetration depth is revealed. Both the theory and the numerical simulation predict, in accordance with experiment, a considerable broadening of the peak of coherent backscattering with decreasing coherence length, which significantly extends the application field of the effect, especially in biomedical diagnostics.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9eec6f7716bb910b8600ea7f66803875 https://doi.org/10.1134/s0030400x07040212 Zobrazit plný text záznamu Plný text ve formátu PDF