Smaranda, I., Mihut, L., Baibarac, M., Baltog, I. & Lefrant, S. (2014) Abnormal anti-Stokes Raman scattering and coherent backscattering as manifestation of Anderson localization of light in nonlinear mesoscopic materials. Opt. Eng. 53 097109.
Added by: Laurent Cournède (2016-03-10 21:01:55)
|Type de référence: Article
Numéro d'identification (ISBN etc.): 0091-3286
Clé BibTeX: Smaranda2014
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Mots-clés: Anderson localization, backscattering, band, carbon nanotubes, coherent anti-Stokes Raman scattering, mesoscopic materials, microscopy, modes, nonlinear optical materials, raman, spectroscopy
Créateurs: Baibarac, Baltog, Lefrant, Mihut, Smaranda
Collection: Opt. Eng.
Consultations : 1/607
Indice de consultation : 3%
Indice de popularité : 0.75%
We demonstrate that under continuous single-beam excitation, one can generate an abnormal antiStokes Raman emission (AASRE) whose properties are similar to a coherent anti-Stokes Raman scattering. The effect has been observed in mesoscopic materials, which possess intrinsically nonlinear properties [lithium niobate (LiNbO3), bismuth germanium oxide (Bi12GeO20; BGO), bismuth silicon oxide (Bi12GeO20; BSO)], which have a nonzero electric susceptibility of the third order, chi((3)) not equal 0. Corroborated Raman and coherent backscattering studies demonstrate that the occurrence of both effects is conditioned by the existence of a mesoscopic morphology of the sample, which is able to ensure efficient transport of the light inside the sample through a multiple light scattering mechanism. In this context, both AASRE and coherent backscattering effects are because of the Anderson localization of the light. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Added by: Laurent Cournède