Alternate formulation of enhanced backscattering as phase conjugation and diffraction: derivation and experimental observation.
Alternate formulation of enhanced backscattering as phase conjugation and diffraction: derivation and experimental observation.
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DOI：
10.1364/oe.19.011922
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发表时间：
2011-06-20
期刊：
影响因子：
3.8
通讯作者：
Backman V
中科院分区：
文献类型：
--
作者：
Rogers JD;Stoyneva V;Turzhitsky V;Mutyal NN;Pradhan P;Çapoğlu İR;Backman V
Enhanced backscattering (EBS), also known as weak localization of light, is derived using the Huygens–Fresnel principle and backscattering is generally shown to be the sum of an incoherent baseline and a phase conjugated portion of the incident wave that forms EBS. The phase conjugated portion is truncated by an effective aperture described by the probability function P(s) of coherent path-pair separations. P(s) is determined by the scattering properties of the medium and so characterization of EBS can be used for metrology of scattering materials. A three dimensional intensity peak is predicted in free space at a point conjugate to the source and is experimentally observed.
