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31.
32.
A. V. Andreev 《JETP Letters》2001,74(1):6-9
The experimental spectral dependence of the intensity of the second harmonic (SH) generated in microcavities based on porous silicon photonic crystal demonstrates resonant intensity enhancement (by a factor of ~2×102) in the vicinity of the cavity mode and at the edges of the photonic band gap. The enhancement is due to the combined effect of pump radiation localization inside the microcavity, multiple SH interference in the photonic crystal, and two-photon resonance of the porous silicon quadratic susceptibility at the SH frequency. 相似文献
33.
It is shown that the blurring of the rear side of a thin laser target leads to a decrease in the intensity of higher harmonics in the spectrum of coherent transition radiation and that the scale of the boundary inhomogeneity can be estimated from the amplitude ratio of harmonics. Deceleration of the electron flow in an ambipolar electric field at the rear boundary of a target leads to a decrease in the intensity of lower harmonics in the spectrum of coherent transition radiation, and the strength of the ambipolar field can be estimated from the amplitude ratio of harmonics. A change in the permittivity of a dielectric laser target with frequency can lead to an increase in the intensity of some harmonics in the spectrum due to the Vavilov-Cherenkov mechanism. 相似文献
34.
A. V. Malevskaya V. S. Kalinovskii N. D. Il’inskaya D. A. Malevskii E. V. Kontrosh M. Z. Shvarts V. M. Andreev 《Technical Physics》2018,63(8):1177-1181
A multilayer system of ohmic contacts for GaAs/AlGaAs photovoltaic converters has been developed. A method of ohmic contact blackening is suggested with the aim of improving the coefficient of optical signal reflection from an Ag/Au/Ag multilayer contact. Owing to blackening, the reflection coefficient has been decreased more than tenfold. 相似文献
35.
Andreev S. N. Apasheva L. M. Ashurov M. Kh. Lukina N. A. Sapaev B. Sapaev I. B. Sergeichev K. F. Shcherbakov I. A. 《Physics of Wave Phenomena》2019,27(2):145-148
A method for the production of pure solutions of hydrogen peroxide during water activation by the plasma of electrodeless microwave discharge has been developed. It is shown that activated water has a pronounced effect on agricultural plants, being a non-toxic and chemically pure regulator of biological activity. In particular, the treatment of seeds of agricultural plants with activated water solutions can improve their drought resistance.
相似文献36.
Physics of the Solid State - The electrical conductivity of thin polycrystalline V(1 – x)WxO2 has been studied in a wide temperature range, which covers the regions of both... 相似文献
37.
Timofeeva Е. Е. Panchenko E. Yu. Surikov N. Yu. Tagiltsev A. I. Pichkaleva M. V. Larchenkova N. G. Chumlyakov Yu. I. Andreev V. A. 《Russian Physics Journal》2019,61(12):2231-2235
Russian Physics Journal - Stress-induced and thermal-induced martensitic transformations (MTs) in compression were investigated in [001]-oriented Ti–50.6 at.% Ni single crystals aged at 573 K... 相似文献
38.
Murgin A. L. Ovsetsina T. I. Maleeva A. I. Andreev P. V. Somov N. V. Gushchin A. V. 《Crystallography Reports》2020,65(3):449-452
Crystallography Reports - The bis[(2E)-3-phenylprop-2-enoate]-tris(п-tolyl)antimony n-Tol3Sb[OC(O)CH=CHPh]2 complex is obtained as a result of interaction of tri-n-tolylantimony, hydrogen... 相似文献
39.
Andreev Yu. A. Smirnov S. S. Zavyalova K. V. Xie Y. Qiu Y. 《Russian Physics Journal》2020,63(2):250-257
Russian Physics Journal - Comparative experimental investigations of combined and helical ultra-wideband antennas are performed. The antennas are optimized to be excited by the 1 ns bipolar voltage... 相似文献
40.
V. P. Andreev P. S. Sobolev D. O. Zaitsev S. M. Timofeeva 《Russian Journal of General Chemistry》2018,88(10):2108-2113
The coordination of zinc(II) tetraphenylporphine with pyridines was studied by electronic spectroscopy. Linear correlations were found between the thermodynamic and kinetic parameters of coordination in different solvents. The effect of the solvent on the stability constants of the complexes and the thermodynamics of complex formation are discussed. 相似文献