Determination of the angle of rotation of the diffraction grating by the method of conical diffraction

P.P. Vankevych; B.D. Drobenko; N.Y. Ftomyn; Ya. M. Chornodolskyy; A.D. Chernenko; P.I. Vankevych; A. Y. Derevjanchuk; D. R. Moskalenko

doi:10.15330/pcss.23.4.825-829

Authors

P.P. Vankevych Pidstryhach Institute for Applied Problems of Mechanics and Mathematics National Academy of Sciences of Ukraine, Lviv, Ukraine
B.D. Drobenko Pidstryhach Institute for Applied Problems of Mechanics and Mathematics National Academy of Sciences of Ukraine, Lviv, Ukraine
N.Y. Ftomyn Ivan Franko National University of Lviv, Lviv, Ukraine
Ya. M. Chornodolskyy Faculty of Physics, Ivan Franko National University of Lviv, Lviv, Ukraine
A.D. Chernenko Ivan Franko National University of Lviv, Lviv, Ukraine
P.I. Vankevych Ivan Franko National University of Lviv, Lviv, Ukraine
A. Y. Derevjanchuk Sumy State University, Sumy, Ukraine
D. R. Moskalenko Sumy State University, Sumy, Ukraine

DOI:

https://doi.org/10.15330/pcss.23.4.825-829

Keywords:

Conical diffraction, diffraction grating, optical system, laser

Abstract

Diffractograms of rotated polyaniline fiber grating were studied experimentally. Based on the obtained results, the diffraction patterns were analyzed and set of experimental data obtained after image digitization was approximated by the least squares method. The angle of rotation of the diffraction grating was calculated using the determined coefficients of the second-order curves.

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