Zobrazeno 1 - 10
of 57
pro vyhledávání: '"O. Shinkarenko"'
Publikováno v:
Europhysics Letters (EPL). 66:48-54
A new photorefractive approach using the temperature evolution of beam fanning to study the polar structure of the ferroelectric relaxor strontium-barium-niobate (SBN) undergoing the ferroelectric-paraelectric phase transition is proposed. A strong t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db54d1773860768ef2b56d3c9a56e9b7
https://doi.org/10.1209/epl/i2003-10185-0
https://doi.org/10.1209/epl/i2003-10185-0
Publikováno v:
Acta Physica Polonica A. 101:159-174
The review of recent experimental work on photorefractive grating recording and frequency degenerate nonlinear wave mixing in periodically poled lithium niobate is given. We report, in particular, on new results concerning photorefractive grating rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40963c80015b45e76a325e48b5a24371
https://doi.org/10.12693/aphyspola.101.159
https://doi.org/10.12693/aphyspola.101.159
Publikováno v:
Applied Physics B: Lasers and Optics. 73:711-715
Considerable slowing down is observed for both the temporal development of the coherent oscillation slightly above the threshold and the refractive index grating decay slightly below the threshold for a semilinear photorefractive oscillator with two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::729e4c2408ad2f317161a281d9d429b0
https://doi.org/10.1007/s003400100728
https://doi.org/10.1007/s003400100728
Publikováno v:
Optical Materials. 18:171-174
The semilinear photorefractive coherent oscillator with two counterpropagating pump waves may exhibit two optical phase transitions: one from a disordered state of wide-angle photorefractive scattering into a high-ordered state with the immobile phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4013e03d0bb4b323128427d26c97dc14
https://doi.org/10.1016/s0925-3467(01)00160-4
https://doi.org/10.1016/s0925-3467(01)00160-4
Publikováno v:
Applied Physics B. 72:187-190
The threshold behavior is studied for a ring-loop coherent oscillator with a photorefractive strontium barium niobate (SBN) sample. A soft onset of oscillation is revealed and critical slowing down is observed in the temporal development of light-ind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca3d1cdb88fb83c0bae6ec31e259d25b
https://doi.org/10.1007/s003400000434
https://doi.org/10.1007/s003400000434
Publikováno v:
Physical Review Letters. 83:3637-3640
Starting from publication of Haken [1] it has become clear that the onset of oscillation in lasers can be considered as a kind of nonequilibrium optical phase transition. Below the threshold an active medium emits spontaneous radiation with a rather
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f3d1f13e33756ad74adfbb6ad18847c
https://doi.org/10.1103/physrevlett.83.3637
https://doi.org/10.1103/physrevlett.83.3637
Publikováno v:
Conference Digest. 2000 International Quantum Electronics Conference (Cat. No.00TH8504).
Summary from only given. Photorefractive crystals may generate new optical beams of the same frequency as a pump wave if the appropriate optical feedback is ensured with external mirrors or with a special choice of the pump beam orientation. The onse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf3a8aff5223ffeca9a4b9fe0cc65f14
https://doi.org/10.1109/iqec.2000.907840
https://doi.org/10.1109/iqec.2000.907840
Autor:
P. A. Lykov, Lyudmila I Ivleva, M. Goulkov, Th. Woike, Mirco Imlau, O. Shinkarenko, Manfred Wöhlecke, Torsten Granzow
Publikováno v:
Physical Review Letters. 91
A new class of light-induced parametric scattering, not included in the conventional model, has been discovered in photorefractive Sr 0 . 6 1 Ba 0 . 3 9 Nb 2 O 6 :Cr illuminated by two coherent beams. A novel model of multiwave mixing of coherent noi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc3f8e0dc1823b759f5528cf468004d1
https://doi.org/10.1103/physrevlett.91.243903
https://doi.org/10.1103/physrevlett.91.243903
Autor:
M, Goulkov, O, Shinkarenko, L, Ivleva, P, Lykov, T, Granzow, Th, Woike, M, Imlau, M, Wöhlecke
Publikováno v:
Physical review letters. 91(24)
A new class of light-induced parametric scattering, not included in the conventional model, has been discovered in photorefractive Sr(0.61)Ba(0.39)Nb(2)O(6):Cr illuminated by two coherent beams. A novel model of multiwave mixing of coherent noise and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::105d54334033e12f5868f31f383149e7
https://pubmed.ncbi.nlm.nih.gov/14683122
https://pubmed.ncbi.nlm.nih.gov/14683122
Publikováno v:
Scopus-Elsevier
Summary form only given. Recently the analogy with phase transition was revealed for photorefractive coherent oscillators. It has been shown that the onset of oscillation in the ring-loop oscillator and double phase conjugate mirror exhibits similar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ea3fdd2ed114cfbaa3837d9ef141b8c
https://doi.org/10.1109/qels.1999.807144
https://doi.org/10.1109/qels.1999.807144