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1.
We measured the dispersion of light in thin Y2O3 films in the visible and near UV regions of the spectrum. The spectrum of edge absorption is investigated. We found the parameters
of a single-oscillator approximation and determined the dispersion energy and the ionicity of bonding.
I. Franko L’vov State University, 50, Dragomanov St., L’vov, 290005, Ukraine. Translated from Zhurnal Prikladnoi Spektroskopii,
Vol. 64, No. 5, pp. 651–654, September–October, 1997. 相似文献
2.
M. K. Samokhvalov 《Journal of Applied Spectroscopy》1995,62(3):555-558
Ul'yanovsk State Technical University, 32, Severnyi Venets St., Ul'yanovsk, 432027, Russia. Translated from Zhurnal Prikladnoi
Spektroskopii, Vol. 62, No. 3, pp. 182–185, May–June, 1995. 相似文献
3.
Optical and color parameters of titanium nitride coatings deposited from an unseparated vacuum-arc plasma flux and a flux
which is separated from macroparticles are culculated in varying sputtering regimes.
Physics and Engineering Institute, National Academy of Sciences of Belarus, 4, Zhodinskaya St., Minsk, 220141. Translated
from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 1, pp. 87–94, January–February, 1998. 相似文献
4.
Institute of Solid-State Physics, 8, Kengaraga St., Riga, LV 1063, Latvia. Translated from Zhurnal Prikladnoi Spektroskopii,
Vol. 62, No. 3, pp. 174–177, May–June, 1995. 相似文献
5.
G. G. Shakhov 《Journal of Applied Spectroscopy》1995,62(3):431-434
S. I. Vavilov State Optical Institute, Russia, 199034, St. Peterburg, Birzhevaya Liniya, 12. Translated from Zhurnal Prikladnoi
Spektroskopii, Vol. 62, No. 3, pp. 38–42, May–June, 1995. 相似文献
6.
Results of the design and development of a system for remote sensing of the state and evaluation of the parameters of the
natural environment and objects are presented. The devices developed are based on a generalized structural model of measuring
system for acquisition of data on spectral, energy, polarization, angular, and spatial characteristics of the optical radiation
field of the object under investigation.
A. N. Sevchenko Scientific Research Institute for Applied Physical Problems at the Belarusian State University, 7, Kurchatov
St., Minsk, 220064, Belarus. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 64, No. 6, pp. 827–833, November–December,
1997. 相似文献
7.
Y. V. Zorenko 《Journal of Applied Spectroscopy》1998,65(2):218-223
The processes of crystallization by the method of liquid epitaxy are studied for the first time for single-crystal films of
CdWO4 doped with the mercurylike ions Bi3+ and Pb2+, which can be used as thin-film components of combined scintillators for monitoring α- and β-activities. It is shown that
in comparison with their solidcrystal analogs, the special features of these films consist in a longwave shift of the integral
luminescence spectrum that is caused by high concentrations of the radiating complexes (VCd-WO6) with hvmax=2.05–2.15 eV and the “distorted” complexes (WO6)* in them. It is found that in the case of luminescence of single-crystal films CdWO4:Pb, radiation of mercurylike centers (PbO6) prevails with hvmax=2.87 eV, while in luminescence of CdWO4, radiation of centers (BiO6) with hvmax=2.16 eV and of complexes (VCd-WO6).
Institute of Applied Physics, Iv. Franko Lvov State University, 49, General Chuprynka St., Lvov, 290044, Ukraine. Translated
from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 2, pp. 211–215, March–April, 1998. 相似文献
8.
Hrant Yeritsyan Vachagan Harutiunian Volodia Gevorkyan Norair Grigoryan Eleonora Hakhverdyan Sergey Nikoghosyan Aram Sahakyan Rudolf Gevorgyan Hakob Sargisyan Yeghis Keheyan 《Central European Journal of Physics》2005,3(4):623-635
Infrared (IR) absorption and luminescence in chemically and radiation-modified natural Armenian Zeolite (clinoptilolite) samples
have been studied. The luminescence was studied in 390–450 nm and 620–710 nm wavelength bands, and the IR measurements were
carried out in the 400–5400 cm−1 range. It is shown that the luminescence intensity depends on the content of pure clinoptilolite in the samples and, probably
on the distribution of “passive” luminescence centers over Si and Al sites that became “active” under radiation or chemical
treatment. The samples of electron irradiated clinoptilolite have higher luminescence intensity than the chemically and thermally
treated ones. A decrease in the intensity of IR absorption bands at 3550 cm−1 and 3650 cm−1 was found after irradiation. 相似文献
9.
The nonlinear dynamics of a waveguide CO2 laser with combined periodic loss and pumping modulation is investigated theoretically and experimentally. The possibilities
of controlling time and energy parameters of the output radiation using the corresponding selection of the detuning of the
cavity's longitudinal mode from the center of the amplification line, the amplitude, and the frequency of loss modulation
are demonstrated. The observed asymmetric dependence of the lasing-radiation density on the detuning of the cavity frequency
is explained by the attendant modulation of the refractive index of the loss modulator.
To whom correspondence should be addressed.
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68, F. Skorina Ave., Minsk, 220072, Belarus.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 66, No. 4, pp. 471–478, July–August, 1999. 相似文献
10.
S. G. Nedel’ko M. A. Krysyuk A. L. Apanasenko L. N. Lymarenko Z. T. Moroz 《Journal of Applied Spectroscopy》1997,64(1):55-61
Results of a study of the effect of γ-radiation on the spectral luminescence properties of cadmium tungstate crystals doped
with silver, bismuth, and molybdenum cations are presented. Spectral characteristics of the nondnnnoped crystals are briefly
described. Absorption and photo and X-ray luminescence spectra of the crystals taken before and after exposure to γ-radiation
(5.5·104 Gy) are compared. It is found that the spectral characteristics of the crystals doped with silver, bismuth, and molybdenum
cations do not change markedly after the exposure. The relation between the type of impurity-induced defects, individual characteristics
of the impurity cations, and the character of the effect of γ-radiation on the spectral luminescence properties of impure
crystals is analyzed (preliminarily).
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 64, No. 1, pp. 55–60, January–February, 1997. 相似文献
11.
We investigated the effect of the mode composition (longitudinal and transverse modes) of laser radiation on the basic parameters
of the stroke pattern formed on a treated surface placed inside a laser cavity. We found that the contrast of the stroke pattern
formed by a laser beam with a complex set of longitudinal modes depends, in the first place, on the width of the laser radiation
spectrum and the laser cavity length and is virtually independent of the angle of rotation of the beam. In the region of small
rotation angles the broadening of strokes caused by the effect of transverse modes becomes predominant.
B. I. Stepanov Institute of Physics, Academy of Sciences of Belarus, 70, F. Skorina Ave., Minsk, 220072, Belarus. Translated
from Zhurnal Prikaladnoi Spektroskopii, Vol. 64, No. 1, pp. 50–54, January–February, 1997. 相似文献
12.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 62, No. 1, pp. 81–85, January–February, 1995. 相似文献
13.
A spectral-optical investigation of the color of the red plum peel found in different aggregate states has been performed
with the aim of its standardization in accordance with the demands of the food industry. The absorption spectra as well as
the rotary dispersion and linear dichroism spectra of this food color have been obtained. The latter made it possible to reveal
bands of individual pigments of the above-indicated color, “latent” in its absorption spectrum, and determine the positions
of their maxima.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 66, No. 4, pp. 563–565, July–August, 1999. 相似文献
14.
V. V. Gruzinskii S. M. Kazakov M. N. Kaputerko I. I. Kulak V. A. Suchkov 《Journal of Applied Spectroscopy》1998,65(2):224-231
Information on paths in absorption and deactivation of energy gained by molecules in their excitation by electron impact to
low-lying singlet states has been obtained from an analysis of changes in the fluorescence spectra of these molecules. It
is shown that there is a significant difference in the formation of fluorescence spectra when free molecules are excited by
optical radiation and by electrons. It contrast to optical excitation, the interaction of an electron with a molecule is nonselective
in character. All electronic states have a chance to be excited, which results in ensembles of emitting molecules with a different
store of vibrational energy, and these ensembles each contribute to the fluorescence spectrum.
Deceased.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 2, pp. 216–223, March–April, 1998. 相似文献
15.
A. I. Trokhimets 《Journal of Applied Spectroscopy》1995,62(1):88-90
Institute of Physicoorganic Chemistry, Academy of Sciences of Belarus, 220603, Minsk, Ul. Surganova, 13, Belarus. Translated
from Zhurnal Prikladnoi Spektroskopii, Vol. 62, No. 1, pp. 104–107, January–February, 1995. 相似文献
16.
Results of an investigation of the characteristics of a transverse discharge with prebreakdown ionization multiplication of
electrons in the working media of N2(C-B)-and SF6/H2 chemical HF-lasers are reported. The conditions of initiation of a stable volume discharge in the discharge gap with low
homogeneity of the electrical-field distribution are investigated. A quasisteady plasma based on N2 molecules with a radiation duration of ≤0.5 μsec at transitions of the 2+-system and a homogeneous discharge in a SF6/H2=(3–7)/(1–2) kPa mixture, which is of interest for preionization of the working medium of an HF-laser by the predischarge
method, are obtained.
Uzhgorod State University, 46, Pidgirna Str., Uzhgorod, 294000, Ukraine. Translated from Zhurnal Prikladnoi Spektroskopii,
Vol. 66, No. 3, pp. 412–415, May–June, 1999. 相似文献
17.
K. N. Korostik 《Journal of Applied Spectroscopy》1998,65(1):55-61
The influence of stimulated emission delay, dynamic shift in generation frequency, residual charge effect, timing jitter of
the radiation and excitation regime of an injection laser, as well as of dispersion in a fiber light guide on the data-internal
storage time in an electrooptical contour is investigated. It is found that the storage duration of an interval depends strongly
on the lifetime of nonequilibrium charge carriers, the simultaneous effect of a residual charge and jitter in an injection
laser, as well as on the dc bias current of the laser.
Belarusian State University, 4. F. Skorina Ave., Minsk, 220050, Belarus. Translated from Zhurnal Prikladnoi Spektroskopii,
Vol. 65, No. 1, pp. 56–61, January–February, 1998. 相似文献
18.
Regression relations between the first main component, slope of the SBC curve towards the wavelength axis, and the degree
of mineralization of peat soils are established from experimental data. Errors in determination of peat soil productivity
are estimated using different spectral indices. For practical use it is recommended to measure the spectral brightness coefficients
of peat soils in the 0.50–0.75 μm range.
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 70, F. Skorina Ave., Minsk, 220072, Belarus.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 1, pp. 102–106, January–February, 1998. 相似文献
19.
Conclusions The studies performed here have shown that the superlattice samples studied exhibit photoluminescence spectra which agree
with the Kronig-Penney model, although in calculating the energies of the radiative transitions it is necessary to take into
account the binding energy of the excitons,E
B. Due to the exciton—phonon interaction, the 1HH peak breaks up on the long wavelength side into a Poisson distribution. The
energy of the LO phonon so determined is 34 meV. Bands due toD
0-A
0 andD
0X transitions, caused by remaining low-level impurities in the GaAs crystals are also observed.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 61, Nos. 3–4, pp. 241–245, September–October, 1994. 相似文献
20.
The state of Pd in Pd/TiO2 and Pd/TiO2(Nb2O) systems is investigated by means of electron diffuse reflection spectroscopy, x-ray electron spectroscopy, and IR spectroscopy
of adsorbed CO as a function of thermal and reduction treatments. Modification of titanium dioxide TiO2 leads to intensification of metal-support interaction, which manifests itself as an increase in the content of surface complexes
of Pd strongly bound to TiO2. As a result of electron density transfer from TiO2 with electron-excess Ti3+ ions to the metal deposited, the latter acquires an enhanced reduction ability.
Institute of Physical and Organic Chemistry, National Academy of Sciences of Belarus, 13, Surganov St., Minsk, 220072, Belarus.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 66, No. 1, pp. 84–88 January–February, 1999. 相似文献