Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Shapiro, Evgeny A."'
Autor:
Litinskaya, Marina, Shapiro, Evgeny A.
Publikováno v:
Phys. Rev. A 91, 033802 (2015)
We describe propagation of light in a gas with periodic density modulation, demonstrating photonic-crystal-like refraction with negative refraction angles. We address the role of poorly defined boundaries and damping, and derive an optical analog of
Externí odkaz:
http://arxiv.org/abs/1406.4655
Autor:
Shapiro Evgeny
Publikováno v:
E3S Web of Conferences, Vol 413, p 02048 (2023)
This article describes the method of mathematical statistics for studying the wear of parts of modern machines. It is examined how the service life of the parts is established. It was also assumed that the statistical data on the size of worn parts o
Externí odkaz:
https://doaj.org/article/debfa952ee0740fb879aa82c3e9a9e7f
Autor:
Shapiro Evgeny
Publikováno v:
E3S Web of Conferences, Vol 398, p 01019 (2023)
This article describes the engineering task of wear research, when a part is turned off after a known overhaul service life and its wear is determined. It is examined how the asymmetry coefficient is determined, the modal wear value corresponding to
Externí odkaz:
https://doaj.org/article/45b924d3d75f47c09c531f489fd74d3f
Publikováno v:
New J. Phys. 15, 063015 (2013)
An elementary excitation in an aggregate of coupled particles generates a collective excited state. We show that the dynamics of these excitations can be controlled by applying a transient external potential which modifies the phase of the quantum st
Externí odkaz:
http://arxiv.org/abs/1209.5327
This work investigates the utility of femtosecond pulse shaping in increasing the efficiency of Raman excitation of molecules in the strong-field interaction regime. We study experimentally and theoretically the effect of pulse shaping on the strengt
Externí odkaz:
http://arxiv.org/abs/1207.4760
We report an experimental and theoretical study of the evolution of vibrational coherence in a thermal ensemble of nitrogen molecules. Rotational dephasing and rephasing of the vibrational coherence is detected by coherent anti-Stokes Raman scatterin
Externí odkaz:
http://arxiv.org/abs/1202.4046
We propose a method based on the Electromagnetically Induced Transparency (EIT) phenomenon for the detection of molecules which exist as a small minority in the presence of a majority of absorbers. The EIT effect we employ effectively eliminates the
Externí odkaz:
http://arxiv.org/abs/1201.0581
We study the prospects of controlling transmission of broadband and bi-chromatic laser pulses through turbid samples. The ability to focus transmitted broadband light is limited via both the scattering properties of the medium, and the technical char
Externí odkaz:
http://arxiv.org/abs/1107.5011
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 44 (2011) 154018
We develop the theory for the Adiabatic Raman Photoassociation (ARPA) of ultracold atoms to form ultracold molecules in the presence of scattering resonances. Based on a computational method in which we replace the continuum with a discrete set of "e
Externí odkaz:
http://arxiv.org/abs/1104.1480
We propose a new technique for comparing two Raman active samples. The method employs optical interference of the signals generated via coherent anti-Stokes Raman scattering (CARS) of broadband laser pulses with noisy spectra. It does not require spe
Externí odkaz:
http://arxiv.org/abs/1104.1164