Optics and Spectroscopy

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Peculiarities of the SEHRS spectrum of 4,4′-bipyridine molecule
Optics and Spectroscopy - Tập 121 - Trang 677-688 - 2016
A. V. Golovin, A. M. Polubotko, V. P. Chelibanov
The SEHRS spectrum of 4,4′-bipyridine is analyzed on the base of the Dipole-Quadrupole theory. It is demonstrated that there appear strong lines caused by vibrations transforming after the unit irreducible representation of the D 2 symmetry group, which is most probably describes the symmetry properties of the molecule. These lines are nearly forbidden for the molecule, adsorbed on rough metal sur... hiện toàn bộ
Self-trapping phenomenon in exciton-polariton dynamics
Optics and Spectroscopy - Tập 115 - Trang 823-827 - 2013
O. F. Vasilieva, P. I. Khadzhi
The polariton dynamics in a microcavity in the parametric oscillator mode, when two pump polaritons are transformed into signal and idler polaritons and vice versa, has been studied. A nonlinear differential equation is obtained, which describes the temporal evolution of pump-polariton density, the solution of which is expressed in terms of the Jacobi elliptical functions. The amplitude and period... hiện toàn bộ
Experimental determination and interpretation of fluorescence and fluorescence excitation spectra of 1,2-benzanthracene cooled in supersonic jet
Optics and Spectroscopy - Tập 110 - Trang 686-693 - 2011
N. A. Borisevich, G. G. Dyachenko, V. A. Petukhov, D. I. Polishchuk, M. A. Semenov
We measured the fluorescence and fluorescence excitation spectra of supersonic jet-cooled 1,2-benzanthracene. Using the MO/M8ST method, we calculated the frequencies of in-plane vibrations in the ground and first excited singlet electronic states, and, in the Franck-Condon approximation, we calculated the intensities of transitions between them. Experimental spectra are interpreted based on these ... hiện toàn bộ
Reflection and transmission of light by a ferromagnetic structure with a noncollinear orientation of the magnetization of layers
Optics and Spectroscopy - Tập 102 - Trang 290-300 - 2007
A. F. Bukhanko, A. L. Sukstanskii
The transmission and reflection of light by a ferromagnetic structure with a noncollinear orientation of the magnetization vectors of layers lying in the plane of the film is considered. The characteristic matrix of the structure that relates the wave amplitudes at the entrance to the system and at the exit from it and that determines the magnetooptical properties of the structure is calculated. T... hiện toàn bộ
Spectral, luminescent, and lasing characteristics of pyridyloxazole derivatives in inorganic and hybrid gel materials
Optics and Spectroscopy - Tập 104 - Trang 190-195 - 2011
R. T. Kuznetsova, G. V. Mayer, Yu. A. Manekina, E. N. Tel’minov, S. M. Arabei, T. A. Pavich, K. N. Solovyov
The spectral, luminescent, lasing, and photochemical characteristics of two pyridyloxazole derivatives incorporated during the sol-gel synthesis into inorganic silicate and hybrid organic-inorganic xerogels in the form of bulk matrices and thin films are studied. It is found that organic molecules are fixed in nanopores of solid matrices by specific interactions between proton-accepting centers of... hiện toàn bộ
Palladium-like XeIX-CeXIII spectra: Effective interaction and radiative constants
Optics and Spectroscopy - Tập 95 - Trang 869-872 - 2003
A. V. Loginov
A semiempirical least squares method is used to determine the wave functions for the intermediate coupling between the 4d 95s, 4d 95p, and 4d 95d levels in the XeIX-CeXIII spectra and to calculate the radiative lifetimes of the 4d 95p and 4d 95d levels in these spectra.
Effect of saturation in the field of coherent and intrinsic spontaneous radiation
Optics and Spectroscopy - - 2005
S. G. Rautian, Э. Г. Сапрыкин, А. А. Черненко
Simulation of shadings in systems of opaque particles
Optics and Spectroscopy - Tập 88 - Trang 619-622 - 2000
D. G. Stankevich, Yu. G. Shkuratov, K. O. Muinonen, O. V. Miloslavskaya
Results of computer simulation of the shading effect in systems of opaque spherical particles scattering light in accordance with the Lambert law are presented. Two types of systems are studied: a semi-infinite medium and statistically uniform clusters of a finite number of particles. The simulation makes it possible to obtain photometric characteristics of systems with an accuracy better than 1%.... hiện toàn bộ
Rotational Rydberg states of polar molecules: Hund’s classification and Zeeman effect
Optics and Spectroscopy - Tập 104 - Trang 21-39 - 2011
A. V. Danilyan, V. E. Chernov
The rotational Rydberg states of polar molecules, which arise as a result of the interaction of a Rydberg electron with core rotations, are considered. A large number of angular momenta in the core-electron system lead to a considerably greater number of possible coupling schemes of these momenta compared to the number of schemes determined by the classical five Hund’s cases for lower excited elec... hiện toàn bộ
Low-temperature time-resolved spectroscopy of APb2X5 crystals (A ≡ K, Rb; X ≡ Cl, Br)
Optics and Spectroscopy - Tập 101 Số 2 - Trang 234-244 - 2006
В. А. Пустоваров, И. Н. Огородников, Н. С. Бастрикова, А. А. Смирнов, Л. И. Исаенко, A. P. Eliseev
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