Zobrazeno 1 - 10
of 170
pro vyhledávání: '"Boris Ya Zel'dovich"'
Autor:
David E. Roberts, Diane M. Steeves, Boris Ya Zel'dovich, Nelson V. Tabiryan, Svetlana V. Serak, Sarik R. Nersisyan, Brian R. Kimball
Publikováno v:
Optics express. 24(7)
We report on lenses that operate over the visible wavelength band from 450 nm to beyond 700 nm, and other lenses that operate over a wide region in the near-infrared from 650 nm to beyond 1000 nm. Lenses were recorded in liquid crystal polymer layers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::626b321ba141ec59dc2e388a14804077
https://pubmed.ncbi.nlm.nih.gov/27137003
https://pubmed.ncbi.nlm.nih.gov/27137003
Autor:
Leonid B. Glebov, Daniel Ott, Vadim Smirnov, Sergiy Mokhov, Ivan Divliansky, Boris Ya Zel'dovich
Publikováno v:
Optical Engineering. 57:1
Volume Bragg grating (VBG) with refractive index modulation (RIM) apodized with sinusoidal semiperiod profile is studied theoretically and experimentally. An apodized VBG of this type was fabricated with a sequential recording of two VBGs with slight
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abb83c54a0487d9ddd04fca6e89a1587
https://doi.org/10.1117/1.oe.57.3.037106
https://doi.org/10.1117/1.oe.57.3.037106
Autor:
Sergiy Mokhov, Boris Ya Zel'dovich
Publikováno v:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 464:3071-3080
The notion of reflection strength S of a plane wave by an arbitrary non-absorbing layer is introduced, so that the intensity of reflection is R =tanh 2 S . We have shown that the total strength of reflection by a sequence of elements is expressed thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a97c164233a8b56f690165cb1c5472af
https://doi.org/10.1098/rspa.2008.0100
https://doi.org/10.1098/rspa.2008.0100
Autor:
Boris Ya Zel'dovich, Julien Lumeau, Leonid B. Glebov, Vadim Smirnov, Sergiy Mokhov, Ivan Divliansky, Sergiy Kaim
Publikováno v:
Journal of the Optical Society of America. A, Optics and image science
Journal of the Optical Society of America. A, Optics and image science, Optical Society of America, 2015, 32 (1), pp.22-27
Journal of the Optical Society of America. A, Optics and image science, 2015, 32 (1), pp.22-27
Journal of the Optical Society of America. A, Optics and image science, Optical Society of America, 2015, 32 (1), pp.22-27
Journal of the Optical Society of America. A, Optics and image science, 2015, 32 (1), pp.22-27
International audience; Recording of volume Bragg gratings (VBGs) in photo-thermo-refractive glass is limited to a maximum refractive index change about 0.002. We discuss various saturation curves and their influence on the amplitudes of recorded gra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::567badef39d9836f6dc2900ae988f690
https://pubmed.ncbi.nlm.nih.gov/26366486
https://pubmed.ncbi.nlm.nih.gov/26366486
Autor:
Bahaa E. A. Saleh, Evan R. Hale, Boris Ya Zel'dovich, Leonid B. Glebov, Marc SeGall, Daniel Ott, Ivan Divliansky
Publikováno v:
SPIE Proceedings.
Phase masks are important optical elements that have been utilized for several decades in a large variety of applications. Recently, we demonstrated a new type of phase masks fabricated by encoding phase profiles into volume Bragg gratings, allowing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f50bd300e9ba7297ae5f7e5e951141b3
https://doi.org/10.1117/12.2081006
https://doi.org/10.1117/12.2081006
Autor:
Nadia Baranova, Boris Ya Zel'dovich
Publikováno v:
Frontiers in Optics 2015.
Dependence of phase velocity on propagation direction is shown to be decoupled from birefringence. The latter is propagation difference for two polarizations; it depends on anisotropy of impedance tensor: square root of mu / epsilon.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0deb0ec7b66704e11f606d60cb47625
https://doi.org/10.1364/fio.2015.fth1a.6
https://doi.org/10.1364/fio.2015.fth1a.6
Publikováno v:
Frontiers in Optics 2015.
Chirped Bragg Grating (CBG) at tilted incidence is shown producing wavelength-dependent transverse beam stretching allowing for spectroscopy and spectral beam combining. Moire patterned CBG at normal incidence is shown producing spectral comb filter.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da37797f397c15899d8408724916c0fc
https://doi.org/10.1364/fio.2015.fth2c.2
https://doi.org/10.1364/fio.2015.fth2c.2
Autor:
M. J. Soileau, Boris Ya Zel'dovich
Publikováno v:
Physics-Uspekhi. 47:1239-1255
The teaching of optical phenomena can be enhanced through the use of analogies to the motion of a bi-freguency pendulum. In this text we target demonstrations to four groups of students and scientists: younger schoolchildren to high school seniors; 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deea42e1f00e80a6e8d1010aab44bc60
https://doi.org/10.1070/pu2004v047n12abeh001880
https://doi.org/10.1070/pu2004v047n12abeh001880
Autor:
Vadim Smirnov, Alexander Spiro, Leonid B. Glebov, Boris Ya Zel'dovich, Sergiy Kaim, Sergiy Mokhov
Publikováno v:
Laser Physics. 27:085002
This study shows that a uniform reflecting volume Bragg grating (VBG) can be used as a compact monolithic stretcher of high-power picosecond laser pulses, which is important for cases in which chirped Bragg gratings with the required chirp rate are d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a56e8b02f32337018edfdebc8eafee2
https://doi.org/10.1088/1555-6611/aa7adc
https://doi.org/10.1088/1555-6611/aa7adc
Publikováno v:
Optics express. 22(17)
We propose a monolithic large-aperture narrowband optical filter based on a moire volume Bragg grating formed by two sequentially recorded gratings with slightly different resonant wavelengths. Such recording creates a spatial modulation of refractiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4e1dd8fbb39cdfa597465a9ac5ba652
https://pubmed.ncbi.nlm.nih.gov/25321246
https://pubmed.ncbi.nlm.nih.gov/25321246