Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Valery V. Ivakhnik"'
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 27, Iss 2, Pp 38-44 (2024)
Background. Generation of a wave with a double reversed wavefront in multimode waveguides increases the efficiency of six-wave radiation converters and expands the possibilities of its use in adaptive optics problems and the conversion of complex spa
Externí odkaz:
https://doaj.org/article/113c12963fa6471d9df87fd2ef8611d8
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 26, Iss 2, Pp 18-26 (2023)
Background. The need to create highly efficient four-wave radiation converters in order to use them in adaptive optics systems, for real-time processing of complex spatio-temporal fields, in interferometry, quantum cryptography, etc. requires along w
Externí odkaz:
https://doaj.org/article/d97e4e749ae9454199c1b66e390af9c8
Autor:
Valery V. Ivakhnik, Maxim V. Savelyev
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 26, Iss 1, Pp 9-17 (2023)
Abstract – The spatial characteristics of a four-wave radiation converter in a transparent heterogeneous polydisperse medium are studied in this paper considering the nanoparticle flow caused by the gravity action with a normal size distribution of
Externí odkaz:
https://doaj.org/article/3463ab49f8f7483ba72416aad503bd3c
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 25, Iss 3, Pp 9-15 (2022)
The coincidence of the amplitude reflection coefficients, half-widths of the spatial frequencies bands of a four-wave radiation converter on thermal nonlinearity with feedback for signal or object waves has been shown at equal pump waves intensity. T
Externí odkaz:
https://doaj.org/article/7dd2cda0852b481088ffc5f6a9dd08a7
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 24, Iss 1, Pp 15-21 (2021)
An expression is obtained for the point spread function of a four-wave radiation converter in a multimode waveguide with Kerr nonlinearity, taking into account the transfer of energy from the object wave to the signal wave and vice versa. For single-
Externí odkaz:
https://doaj.org/article/035b54df91214cdf9e087a9788eb9367
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 23, Iss 3, Pp 27-33 (2020)
The spatial selectivity of a four-wave radiation converter in a multimode waveguide with thermal nonlinearity in a circuit with incident pump waves is analyzed. It is shown that the half-widths of the modulus of the point spread function, which chara
Externí odkaz:
https://doaj.org/article/7173ac820aec48748433223d71f39576
Publikováno v:
Physics of Wave Processes and Radio Systems. 23:27-33
The spatial selectivity of a four-wave radiation converter in a multimode waveguide with thermal nonlinearity in a circuit with incident pump waves is analyzed. It is shown that the half-widths of the modulus of the point spread function, which chara