Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Alexander A. Zemlyanov"'
Autor:
Dmitry V. Apeksimov, Pavel A. Babushkin, Yury E. Geints, Andrey M. Kabanov, Elena E. Khoroshaeva, Victor K. Oshlakov, Alexey V. Petrov, Alexander A. Zemlyanov
Publikováno v:
Atmosphere, Vol 15, Iss 7, p 813 (2024)
Laser-induced fluorescence spectroscopy (LIFS) is actively used for remote sensing of atmospheric aerosols and is currently one of the most sensitive and selective techniques for determining small concentrations of substances inside particles. The us
Externí odkaz:
https://doaj.org/article/eb9f352e1b03420f9d6af2a8d4c15518
Autor:
Alexander A. Zemlyanov, Yury E. Geints
Multiple filamentation in air of high-power ultrashort laser radiation with transverse intensity profile resembling a "corona" composed by incoherent combining of several annularly distributed independent top-hat sub-beams is theoretically studied. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37a803ffc892df2686e22870d72b474f
http://arxiv.org/abs/2012.09361
http://arxiv.org/abs/2012.09361
Publikováno v:
26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics.
We report the study of “photonic nanojet” (PNJ) formed by laser radiation scattering on single-layer ordered assembly of dielectric microtoroids placed on the silicone film surface. By means of the FDTD - method, the parameters of PNJ (length, wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e1548b6fd0e66b174e203ec0767b02a
https://doi.org/10.1117/12.2572642
https://doi.org/10.1117/12.2572642
Publikováno v:
Optics letters. 45(14)
The physical origin of subwavelength photonic nanojet in specular-reflection mode ( s -PNJ) is theoretically considered. This specific type of photonic nanojet (PNJ) emerges upon double focusing of a plane optical wave by a transparent dielectric mic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e303120b49d48d4dd530185f52ed41dc
https://pubmed.ncbi.nlm.nih.gov/32667310
https://pubmed.ncbi.nlm.nih.gov/32667310
Publikováno v:
Photonics and Plasmonics at the Mesoscale.
We report the study of light absorption efficiency of a hollow spherical microparticle (microcapsule) doped with strongly absorbing gold nanoparticles of spherical and cylindrical spatial shapes. By means of the FDTD numerical simulations, the absorp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46e056302341b95af175da1883bac551
https://doi.org/10.1117/12.2551580
https://doi.org/10.1117/12.2551580
Publikováno v:
Atmospheric and Oceanic Optics. 30:451-455
The results are presented of the experimental study of spatial characteristics of postfilamentation light channels in air formed by femtosecond pulses of a Ti:Sapphire laser with different energy for focused and collimated beams. It is found that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd14b48c623569f7d2cbde935f00ce8d
https://doi.org/10.1134/s1024856017050025
https://doi.org/10.1134/s1024856017050025
Autor:
Andrey A. Ionin, Yu. E. Geints, Leonid V. Seleznev, Daria V. Mokrousova, Alexander A. Zemlyanov, E. S. Sunchugasheva
Publikováno v:
Atmospheric and Oceanic Optics. 30:217-221
Results of laboratory and numerical experiments on the multiple filamentation of high-power pulse Ti:Sapphire laser radiation (740 nm) in air are presented. The postfilamentation stage of pulse propagation in the form of intensive spatially localized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::510dc64fe05ad86c07a35776130b5373
https://doi.org/10.1134/s102485601703006x
https://doi.org/10.1134/s102485601703006x
Publikováno v:
24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics.
The effect of "photonic nanojet" (PNJ) arising in the near-field scattering region at the surface of dielectric axisymmetric microparticles (hemisphere, axicon, combined particles) under optical illumination is considered theoretically. Numerical cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99175c28fa24be168893eafaa0369b4a
https://doi.org/10.1117/12.2503311
https://doi.org/10.1117/12.2503311
Publikováno v:
24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics.
Results of numerical simulation of self-action in air of a sequence of ultrashort laser pulses with a carrier in the near and mid-IR regions are presented. We show that the use of a 10.6-μm pulse train allows significant elongation of the plasma cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2aefc15378cdf9208da904f3fb295db
https://doi.org/10.1117/12.2503186
https://doi.org/10.1117/12.2503186
Autor:
Alexander A. Zemlyanov, Yu. E. Geints, Andrey A. Ionin, D. V. Sinitsyn, E. S. Sunchugasheva, Daria V. Mokrousova, Leonid V. Seleznev
Publikováno v:
Quantum Electronics. 46:1009-1014
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31293892cc70e673bb2bfd34695ffae7
https://doi.org/10.1070/qel16154
https://doi.org/10.1070/qel16154