Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Rafael Drampyan"'
Publikováno v:
Applied Physics B. 128
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b355653572d67014e157d6d1c6940bf2
https://doi.org/10.1007/s00340-022-07869-w
https://doi.org/10.1007/s00340-022-07869-w
Publikováno v:
Laser Beam Shaping XXI.
We report the experimental results of the optical beam self-focusing and soliton formation in a photorefractive Fe doped lithium niobate (LN:Fe) crystal caused by a pyroelectric effect. The laser beam at 632.8 nm wavelength and with power of 5 mW and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc9d97cfec485188d70d8559aa934bf4
https://doi.org/10.1117/12.2594116
https://doi.org/10.1117/12.2594116
Publikováno v:
Optics Communications
Optics Communications, Elsevier, 2021, 478 (126396)
Optics Communications, Elsevier, 2021, 478 (126396)
International audience; We report 2D micrometric scale regular optical patterns formation induced by a laser beam propagating through a Fe doped lithium niobate (LN:Fe) crystal. A single mode CW laser radiation at 632.8 nm wavelength and beam powers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b103219b18ca871f3b55068c36fe173
https://hal.archives-ouvertes.fr/hal-03222040
https://hal.archives-ouvertes.fr/hal-03222040
Publikováno v:
Photosensitive Materials and their Applications.
We report the trapping of dielectric micro-particles of CaCO3 via dielectrophoretic forces on the surface of Fe doped LiNbO3 (LN:Fe) crystal with recorded volume holographic grating which provides quasi-periodic space-charge electric field distributi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b1e6cde82ac83d2cac60ff50d9e30f7
https://doi.org/10.1117/12.2553060
https://doi.org/10.1117/12.2553060
Autor:
Roberto Cecchi, Nicolò Papi, Cristina Cicali, Simone Caporali, Andrea Vanella, Emilio Mariotti, Rafael Drampyan, A. Khanbekyan, Tigran A. Vartanyan, Leonardo Stiaccini, Carmela Marinelli, I. A. Gladskikh, Francesco Sarri
Publikováno v:
Optical and Quantum Electronics. 52
In this paper, we present a series of experiments where alkali atoms have been implanted in nanoporous structures, in such a way that, by light, we can induce and control the formation and the destruction of alkali nanoparticles, having slightly diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6765ebb89d6cf8341a8e222fae74e21a
https://doi.org/10.1007/s11082-020-2208-y
https://doi.org/10.1007/s11082-020-2208-y
Publikováno v:
Photonics and Nanostructures - Fundamentals and Applications. 31:71-76
The first experimental realization of the non-diffracting Bessel beam technique for micro-structuring of thin rubidium metallic films on the sapphire surface is reported. Rubidium atoms were deposited onto the cool sapphire windows from the heated ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::327d3992ef516e6975ed4e502e090dfa
https://doi.org/10.1016/j.photonics.2018.06.008
https://doi.org/10.1016/j.photonics.2018.06.008
Autor:
Varsenik Nersesyan, Rafael Drampyan, Kristiaan Neyts, Tigran Dadalyan, Filip Beunis, Jeroen Beeckman
Publikováno v:
Journal of Modern Optics. 65:2034-2043
A refractive Bessel lattice with micrometric periodicity is induced optically in a photosensitive azobenzene liquid crystal cell of 3 µm thickness by a green 532 nm, 30 mW Bessel beam and with simu...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::353e15e3f2a391453f67ab753e0658e9
https://doi.org/10.1080/09500340.2018.1489079
https://doi.org/10.1080/09500340.2018.1489079
Publikováno v:
Optics & Laser Technology. 139:106949
The non-diffracting Bessel beam approach was used for the first time for the elaboration of photovoltaic tweezers. We report the trapping of dielectric microparticles of chalk (CaCO3), as well as silver nanoparticles in glycerin suspension via dielec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61d4d47f19ef8f5a36233c9ffb4e8998
https://doi.org/10.1016/j.optlastec.2021.106949
https://doi.org/10.1016/j.optlastec.2021.106949
Publikováno v:
Holography: Advances and Modern Trends VI.
We report for the first time a regular optical patterns formation in a laser beam propagating through a Fe doped lithium niobate (LN:Fe) crystal. The process was controlled by pyroelectric effect resulting in self-localization of the regular optical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54edf2ff773774baeba06526bcdca9f4
https://doi.org/10.1117/12.2520577
https://doi.org/10.1117/12.2520577
Publikováno v:
Frontiers in Optics + Laser Science APS/DLS.
A novel method of magnetic field controlled non-destructive testing of optically inducted refractive structures in photorefractive crystals is shown experimentally. Experimental results are explained in the model of polarons in a magnetic field.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f077ed8339ff7ea3ad8ac3bdb08f057
https://doi.org/10.1364/fio.2019.jtu3a.16
https://doi.org/10.1364/fio.2019.jtu3a.16