In this article the principle of instrumental (experimental) determination of the parameters of mode compositions of an optical signal propagating along an optical fiber is described. The measurement scheme is based on the use of a wellknown experimental setup designed to obtain the profile of the refractive index of an optical fiber. In addition to that setup, it is proposed to perform measurements for different angular positions of the investigated optical fiber, and for its different longitudinal positions. The proposed method is realizable in the case when the signal propagating through the optical fiber is characterized by increased intensity, which makes it possible to measure a nonlinear (Kerr) caused addition to the refractive index. It is proposed to calculate the desired mode weight coefficients by the method of probabilistic selection according to the developed method.
The article first proposed a method for controlling the radio emission of phased array - using chirped signals. A significant element is the “Chirp To Amplitude” (CTA) converter, which is currently (in explicit form) not represented either in the telecommunications market or in the literature.
The article is devoted to a theoretical study aimed at establishing patterns resonant electron-photon interaction in a sitall nanomaterial. Designed by analytical model of electron-photon interaction(collaboration) for linear and nonlinear regime capacities for the specified material. Developed recommendations on the choice of basic parameters material relevant to their use in plasmon systems to obtain radio frequency spectra in an excited polariton field. An approach is proposed to study the nonlinear process dual-frequency interaction of optical radiation beams with the generation of difference frequencies and excitation of radio frequency surface waves in a planar metal-dielectric structure with crystalline sitall substrate.
This article devoted to an analytical review and detailed analysis of the current state in the field of a formalized description of the physical processes of excitation of the polariton field. The processes of resonant electron-photon interaction in various metal-dielectric structures (including planar) are studied. An approach to modeling the properties of contacting materials leading to the appearance of a surface polariton field has been developed. The process of obtaining the radio frequency spectra of the polariton field is analyzed. A detailed review of metal-dielectric structures and schemes suitable for use in plasmon structures has been performed. The recommended structures for obtaining the radio frequency spectra (of the millimeter and submillimeter ranges) of the plasmon field are determined.
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