Key words and phrases: filtering of the optical spectrum, diffraction structure, rearrangement of the spectral characteristics of the filter (received: Maaccepted: November 14, 2019) Evstigneeva1ġ Institute of Physical Research and Technologies Peoples' Friendship University of Russia (RUDN university) 6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation 2 Universidad Nacional de Ingenieria Av. Komotskii1, Jose Anibal Pauyac Huaman2, Valeriya D. Calculations of the dependence of the filter parameters on the relief depth and on the angle of incidence of the input optical beam to the relief structure are presented.Ĭharacteristics of optical filters built on the basis of periodic relief reflective structures Filters of this type can be built for the ultraviolet, visible, and infrared range. The spectral characteristic of the filter is easy to change by changing the angle of incidence of the input beam to the relief reflecting structure. The zero (minimum) values of the power transfer coefficient of radiation from the input to the output of the filter alternate with maximum values close to unity. The spectral characteristic of this type of filter has an oscillating character.
The scheme can be used as an optical signal filter. It is shown that the power transfer coefficient from the input to the output of the scheme substantially depends on the wavelength of the optical beam. The dependence of the output beam power on the angle of incidence and on the wavelength of the radiation is investigated. The incidence-reflection plane is parallel to the relief lines of the diffraction structure. The zero diffraction order beam is our output beam, which is separated from the other diffraction order beams with the help of a diaphragm. The input radiation beam is directed to the relief structure at a certain angle of incidence. Аннотация научной статьи по физике, автор научной работы - Komotskii Vladislav A., Huaman Jose Pauyac, Evstigneeva Valeriya D.Ī scheme of a new type optical filter, built using a relief reflective periodic diffraction structure, which has a specific rectangular profile, is proposed.
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