This work is dedicated to study the optical properties of scandium borates with the general formula RExPrySc2+z(BO3)4 (x + y + z = 2, RE = Nd, Sm, Tb, Tm, Yb), grown by the TSSG method. The structure, absorption and luminescence of these crystals have been investigated

Ezhov, Dmitry M.

Jamous, A. Y.

Kokh, A. E.

Kuznetsov, Artem B.

Svetlichnyi, Valerii A.

English

Tomsk State University Repository

PULSED LASERS AND LASER APPLICATIONSTHE 15th  INTERNATIONAL CONFERENCEThe 15th International Conference AMPL-2021 PULSED LASERS AND LASER APPLICATIONS September 12–17, 2021 Tomsk, Russia ABSTRACTS GENERAL SPONSOR Special Systems. Photonics, St. Petersburg, Russia CONFERENCE ORGANIZERS Institute of Atmospheric Optics SB RAS Institute of High Current Electronics SB RAS Tomsk State University Tomsk Polytechnic University CONFERENCE SPONSORS Ministry of Education and Science of Russian Federation, Russia Russian Academy of Sciences, Russia Siberian Branch of Russian Academy of Science, Russia Laser Association, Russia  CONFERENCE SPONSORS TOPAZ Research and Inculcation Enterprise, Tomsk, Russia Young Scientists Counsil IAO SB RAS, Tomsk, Russia SP Equipment, Novosibirsk, Russia Azimut Photonics, Moscow, Russia LOTIS TII, Minsk, Belarus Special Systems. Photonics, St.-Petersburg, Russia CLZ Ltd, Moscow, Russia Leningrad Laser Systems, St.-Petersburg, Russia MEDIA SPONSORS Atmospheric and Oceanic Optics Journal, Tomsk, Russia Photonics Journal, Moscow, Russia  Tomsk, 2021  18  YOUNG SCIENTISTS SESSION SESSION Y  tell about the molecular composition of the substance without resorting to additional tools. However, most of the substances that must be investigated, have a dull fluorescence, or do not have it at all. For such cases were synthesized fluorescent probes. The fluorescent probe binds to the molecule under investigation, and after exciting radiation transmits information about the environment in which it is located. Since the medium in which the fluorophore is located strongly affects the intensity of the fluorophore emission, the decay time of the fluorescence and the maximum of the spectrum, we can understand the composition of the solution by changing these parameters. Depending on which probe was used in the study, data on solution viscosity, temperature and polarity can be obtained. Acknowledgments: The reported study was funded by RFBR, Project No.20-32-90116. Y-16 INVESTIGATION OF SHG IN NEW SCANDIUM BORATE WITH THREE CATIONS BY THE KURTZ-PERRY METHOD A.Y. Jamous1, D.M. Ezhov1, A.B. Kuznetsov2, V.A. Svetlichnyi1, and A.E. Kokh2 1Tomsk State University,36 Lenin Ave., 634050, Tomsk, Russia, ammarjamous2@gmail.com; 2Institute of Geology and Mineralogy SB RAS, 3 Koptyug Ave., 630090, Novosibirsk, Russia, ku.artemy@gmail.com Nowadays, lasers are widely used in various technologies from medicine to space. This has created constantly growing needs to improve the efficiency of laser systems, increase their power, and expand their spectral ranges of generation. The development of new materials for converting laser radiation using methods of nonlinear crystal optics is an urgent problem, as well as the study of their optical properties. Much interest is being directed towards the study of oxide crystals, in particular complex borate crystals. Such crystals, which have been intensively studied in recent years, include huntite-type scandium borate with three cations [1]. This work is dedicated to study the optical properties of scandium borates with the general formula RExPrySc2+z(BO3)4 (x + y + z = 2, RE = Nd, Sm, Tb, Tm, Yb), grown by the TSSG method. The structure, absorption and luminescence of these crystals have been investigated. The efficiency of second harmonic generation (SHG) of a nanosecond Nd:YAG laser radiation (1064 nm, 6 ns) was studied using the Kurtz-Perry powder technique [2]. The effective nonlinear optical coefficient is estimated at deff = 0.34, 0.74, 0.82, 0.85, 0.84 pm/V for R = Nd, Sm, Tb, Tm and Yb respectively. The influence of the composition and linear optical properties on the efficiency of SHG has been discussed. This work was supported by RFBR, Projects No. 19-05-00198.  1.  Kokh A.E., Kuznetsov A.B., Pestryakov et. al. // Cryst. Res. Tech. 2017. V. 52, No. 8. 160037. 2.  Kurtz S.K. and Perry T.T. // J. Appl. Phys. 1968. V. 39, No. 8. P. 3798–3813. Y-17 INDUCED ABSORPTION SPECTRA OF CRYSTAL VIOLET IN VARIOUS SOLVENTS N.G. Dmitrieva1,2, O.N. Tchaykovskaya1, E.N. Bocharnikova1, and D.M. Ezhov1 1Tomsk State University, 36 Lenin Ave., Tomsk 634050, Russia; 2Siberian State Medical University, 2 Moskovsky Trakt St., Tomsk, 634055 Russia, brjantseva@rambler.ru The study of the triplet triplet absorption capacity of crystal violet (CV) in various solvents was carried out by the pump probe method. Water, dimethyl sulfoxide, isopropyl alcohol and ethyl alcohol were selected as solvents. The formation of triplet states in various CV solvents was revealed upon excitation by nanosecond radiation of the 4th and 3rd harmonics of a Nd:YAG laser 

Investigation of SHG in new scandium borate with three cations by the Kurtz-Perry method

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Investigation of SHG in new scandium borate with three cations by the Kurtz-Perry method

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