Backscattering of light by a finite two-dimensional crystal plate in the region of exciton resonance: Antispecular reflection |
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Authors: | G G Kozlov |
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Institution: | (1) All-Russia Research Center Vavilov State Optical Institute, St. Petersburg, 199034, Russia |
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Abstract: | It is shown that scattering of a plane monochromatic wave by a finite two-dimensional crystal (quantum well or Langmuir-Blodgett film) in the region of exciton resonance shows, along with the peak of specular reflection, a peak of comparable magnitude corresponding to backward scattering propagating toward the incident beam (antispecular reflection). The effect is related to reflection of the exciton by the boundary of the two-dimensional crystal. The solution of the scattering problem for a simple model system with a Frenkel exciton, demonstrating this phenomenon, is given. |
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