Bulletin of the Lebedev Physics Institute

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Stimulated Raman Scattering of Light in Liquids in the Ultrasonic Wave Field
Bulletin of the Lebedev Physics Institute - - 2023
A. V. Skrabatun, A. A. Matrokhin, A. D. Kudryavtseva, A. N. Maresev, Т. В. Миронова, S. F. Umanskaya, N. V. Tcherniega, М. А. Шевченко
Dynamic model of ortho-para conversion of water molecules
Bulletin of the Lebedev Physics Institute - Tập 38 - Trang 76-79 - 2011
V. K. Konyukhov
A quantum model of mutual conversion of spin isomers of the water molecule, involving a proton of a neighboring water molecule, is proposed. Molecules interact due to magnetic dipole-dipole forces which give rise to flip-flop processes. An additional adsorption energy different in magnitude and sign for singlets and triplets arises from a fast exchange of spin states within an acceptor molecule. A...... hiện toàn bộ
Fluorination as a Possible Method of Increasing Critical Temperature of Cuprate HTSC
Bulletin of the Lebedev Physics Institute - Tập 50 - Trang 218-223 - 2023
A. N. Lykov
A method for searching and synthesizing new HTSC with higher critical temperatures (Tc) is proposed. It is assumed that an increase in Tc in cuprate superconductors requires not only to increase the number of CuO2 planes in superconducting layers, but also to add fluorine anions to Ca or Y planes. Possible crystal structures and chemical formulas of compounds with higher critical temperatures are ...... hiện toàn bộ
Thermal Resistance at the Epitaxial Interface of YBaCuO and PrBaCuO
Bulletin of the Lebedev Physics Institute - - 2019
A. V. Varlashkin
Conditions of dynamic change in radiation mode
Bulletin of the Lebedev Physics Institute - Tập 43 - Trang 244-248 - 2016
B. V. Melkoumian
The inhomogeneous wave equation for determining the previously experimentally detected change in the radiation phase in an accelerated cavity with stationary content is studied. It is shown that the radiation phase is independent of a homogeneous medium filling the accelerated cavity with unchanged phase structure. The necessary and sufficient conditions of the existence of nontrivial solutions of...... hiện toàn bộ
Application of SU(2) Group Fibration for Kinetic Problems of Polyatomic Molecules
Bulletin of the Lebedev Physics Institute - Tập 46 - Trang 26-28 - 2019
V. K. Konyukhov, E. V. Stepanov, S. K. Borisov
We point out the region in 3D-space permitted by symmetry that is available for the translational motion of rotating molecules. This region belongs to the one-parametric subgroup noted as fiber. It has the range of 0–1 for real variable and is disposed on the straight line directed by basic quaternion. The base part of fibration contains the two-dimensional sphere known as a symmetry structure whi...... hiện toàn bộ
Gas-phase growth of silicon-doped luminescent diamond films and isolated nanocrystals
Bulletin of the Lebedev Physics Institute - Tập 38 - Trang 291-296 - 2011
V. S. Sedov, I. I. Vlasov, V. G. Ralchenko, A. A. Khomich, V. I. Konov, A. G. Fabbri, G. Conte
A method of controlled diamond doping, consisting in introducing a solid-state silicon source into a CVD reactor chamber is proposed and implemented. Such an approach is tested during diamond film and isolated nanocrystallite growth on silicon, molybdenum, sapphire, copper, and quartz substrates. The approach to nanodiamond doping with silicon during CVD synthesis, developed in this paper, is prom...... hiện toàn bộ
Temperature Dependence of the Vibrational Mode of Pb1 –xSnxTe Films Grown by MBE on the GaAs/CdTe Hybrid Substrate
Bulletin of the Lebedev Physics Institute - - 2020
V. A. Yakovlev, S. Schreyeck, A. V. Muratov, И. В. Кучеренко, V. S. Vinogradov, Н. Н. Новикова, G. Karczewski, Yu. A. Aleshchenko, S. Chusnutdinow
Photoluminescence of DNA, ATP, and ADP in photon traps upon excitation by the fourth harmonic of the YAG:Nd3+ laser
Bulletin of the Lebedev Physics Institute - - 2016
V. S. Gorelik, G. I. Dovbeshko, A. Yu. Pyatyshev
Room-temperature photoluminescence spectra of DNA, ATP, and ADP placed into photon traps are recorded under ultraviolet excitation. It is found that the use of laser ultraviolet pulse-periodic radiation for excitingDNA,ATP, andADP photoluminescence significantly increases their quantum yield and offers the possibility of lasing in these materials.
On-line laser sensor of the natural water pollution based on the photosynthetic organisms as fluorescent bioindicators
Bulletin of the Lebedev Physics Institute - Tập 38 - Trang 12-14 - 2011
T. S. Gostev, F. I. Kouzminov, S. A. Moiseev
The possibility of using photosynthetic organisms as a fluorescent sensor of the presence of toxicants in natural waters is presented. It is based on high sensitivity of molecular photophysical parameters of chlorophyll a obtained by the method of nonlinear laser fluorimetry to the physiological state of photosynthetic apparatus. Laboratory study of the dependence of photophysical parameters of mi...... hiện toàn bộ
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