350 rub
Journal №4 for 2016 г.
Article in number:
Giant light amplification by nanoclusters system in the field of laser radiation
Keywords: nanocomposite metal-polymer nanomaterial silver nanoparticle nanocomposite film enhanced optical transmission optical radiation optical reflection optical transmittance refractive index polymethylmethacrylate silver
Authors:
К.К. Аltunin - Ph.D. (Phys.-Math.), Associate Professor, Ulyanovsk State Pedagogical University named after I.N. Ulyanov E-mail: teleportation @ yandex
Abstract:
We proposed a model for consideration of optical properties of polymethylmethacrylate film filled with uniformly distributed silver na-noparticles and nanoclusters in the form of three-dimensional «daisies». Metal nanoparticles in a polymer matrix demonstrate optical response of the plasmonic resonance type. Slight changes in the interaction of nanoparticles in the matrix give rise to considerable changes of the effective refraction index of the composite film (compared to the polymer matrix refractive index). The effect of optical radiation amplification is due to the coherent influence of polarizing fields inside the nanocluster, that leads to a change in the natural contour line of the quantum transition, which is accompanied by a significant restructuring of the radiation spectrum. The effective complex refractive index can reach a zero value in a wide range of wavelengths of visible and near IR spectra.
Pages: 14-23
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