Zobrazeno 1 - 10
of 38
pro vyhledávání: '"I. N. Sisakyan"'
Publikováno v:
Optics and Lasers in Engineering. 15:341-356
New holographical optical elements—modans—are described that are computer-generated and aimed to select modes of laser radiation. Modans are matched with modal spatial configurations and are able to transform the modal-power distribution into the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a890ba0eec3e5623d79dd8636b73d13b
https://doi.org/10.1016/0143-8166(91)90021-k
https://doi.org/10.1016/0143-8166(91)90021-k
Publikováno v:
Optics and Lasers in Engineering. 15:297-309
This paper presents the results of investigations in the field of diffractive or ‘binary’ computer-generated optics for the infra-red region of the spectrum. The problem of a CO 2 -laser beam focusing into a complicated focal domain is considered
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c596be122e2bfaa8ec259d48577d834
https://doi.org/10.1016/0143-8166(91)90017-n
https://doi.org/10.1016/0143-8166(91)90017-n
Publikováno v:
Soviet Journal of Quantum Electronics. 20:136-140
A description is given of proposed multichannel modans (components for resolving an incident beam into a spectrum of spatial modes) which can operate simultaneously on several groups of transverse modes. Modans are made by computer-optics methods usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3387cfed73de1cbdda12833fe2875f24
https://doi.org/10.1070/qe1990v020n02abeh004820
https://doi.org/10.1070/qe1990v020n02abeh004820
Publikováno v:
Quantum Electronics. 24:1097-1099
A comparative analysis was made of the surface hardening of steel 45 by high-power CO2 laser beams with a rectangular strip-like cross section and a traditional circular cross section. This was done under various conditions. The treatment with the st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c52620e26d0ca7edc074ead98fe241ed
https://doi.org/10.1070/qe1994v024n12abeh000268
https://doi.org/10.1070/qe1994v024n12abeh000268
Autor:
I N Sisakyan, Evgenii A Andryushin, R. I. Ekzhanov, Aleksandr B Shvartsburg, Andrei V Shepelev
Publikováno v:
Soviet Journal of Quantum Electronics. 20:195-197
An analysis is made of the optical properties of a semiconductor plasma in the far-infrared and submillimeter ranges. Special features of the nonlinear optical characteristics of semiconductors observed in this range are discussed. Estimates are obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae8ae648e0819953150e85ea16ed2938
https://doi.org/10.1070/qe1990v020n02abeh005583
https://doi.org/10.1070/qe1990v020n02abeh005583
Publikováno v:
Soviet Journal of Quantum Electronics. 16:933-941
The methods of coherent states and integrals of motion are used to describe propagation of arbitrary Gaussian beams in focusing and defocusing nonlinear (quadratic) media exhibiting absorption or amplification. Analytic expressions for the beam param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1910ff78a588dc783b4f87115f32ca4f
https://doi.org/10.1070/qe1986v016n07abeh007200
https://doi.org/10.1070/qe1986v016n07abeh007200
Autor:
I N Sisakyan, S G Krivoshlykov
Publikováno v:
Soviet Journal of Quantum Electronics. 10:312-318
Methods of integrals of motion, coherent states, dynamical symmetry group, and density matrix formalism are used to describe the propagation of light in weakly inhomogeneous media, in particular, in a two-dimensional medium having a quadratic transve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b83d730246c58b0da961bd5cc5b678b
https://doi.org/10.1070/qe1980v010n03abeh009979
https://doi.org/10.1070/qe1980v010n03abeh009979
Publikováno v:
Optical and Quantum Electronics. 19:73-77
The value and sign of the ultrashort pulse (USP) chirp are studied experimentally in the YAG:Nd solid-state laser using different saturable absorbers. The effects of active and passive media as well as USP parameters on the chirp are analysed. The po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83e64fd229948d5678824052931f6822
https://doi.org/10.1007/bf02030634
https://doi.org/10.1007/bf02030634
Publikováno v:
Optical and Quantum Electronics. 16:535-539
The energy stability of ultra-short pulses (USPs) from an yttrium-aluminium garnet laser with passive mode locking (PML) has been investigated. Experimental results of passive mode locking based on solutions of widely used dyes are given for comparis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab0e307c3849391f61dae69519b709dd
https://doi.org/10.1007/bf00619915
https://doi.org/10.1007/bf00619915
Publikováno v:
Soviet Journal of Quantum Electronics. 19:543-549
Theoretical and experimental investigations are reported of new mode optical components (elements) which are analogs of sinusoidal phase diffraction gratings with a variable modulation depth. Expressions are derived for nonlinear predistortion and de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fd406b1b412de074246b0623e26f38d
https://doi.org/10.1070/qe1989v019n04abeh007917
https://doi.org/10.1070/qe1989v019n04abeh007917