Efficiency of thermoluminescent response of laser-structured polycrystalline and monocrystalline α-Al2O3

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Жук К.В., Смирнов С.В. Эффективность термолюминесцентного отклика лазерно-структурированного поликристаллического и монокристаллического α-Al2O3 // Оптический журнал. 2023. Т. 90. № 7. С. 94–100. http://doi.org/10.17586/1023-5086-2023-90-07-94-100

Zhuk K.V., Smirnov S.V. Efficiency of thermoluminescent response of laserstructured polycrystalline and monocrystalline α-Al2O3 [in Russian] // Opticheskii Zhurnal. 2023. V. 90. № 7. P. 94–100. http://doi.org/10.17586/1023-5086-2023-90-07-94-100

For citation (Journal of Optical Technology):

Klavdiya V. Zhuk and Serafim V. Smirnov, "Efficiency of the thermoluminescent response in laser-structured monocrystalline and polycrystalline α-Al₂O₃," Journal of Optical Technology. 90(7), 410-413 (2023). https://doi.org/10.1364/JOT.90.000410

Abstract:

Subject of study. Thermoluminescence of sapphire and alumina ceramic samples nanostructured by CO2 laser radiation. The aim of the study is the possibility investigation of increasing the thermoluminescent response by modifying the surface of polycrystalline and single-crystal aluminum oxide by laser radiation. Method. Laser treatment of the studied samples surface was carried out using a CERTON 3020 ULTRA installation with continuous CO2 laser radiation with a wavelength of 10.6 μm at different scanning speeds. Ultraviolet irradiation of the samples was carried out by low-pressure mercury lamp radiation with the separation of the spectral band 230–240 nm. To determine the results of laser treatment of the samples surface, the methods of optical and
infrared Fourier spectroscopy, photo- and thermoluminescence, X-ray phase analysis, and scanning electron spectroscopy were used. Main results. In the course of laser treatment in the studied samples, generation of F-centers and their derivatives an increased concentration was revealed. The effect of laser processing modes on the thermoluminescent response is established. Practical significance. It is shown that laser treatment of the surface of dosimetric materials with CO2 laser radiation leads to an increase in the thermoluminescent response of polycrystalline and single-crystal alumina, which will make it possible to create dosimeters with a lower detected dose threshold. The developed method can be used in the production of ТЛД-500к type dosimeters.

Keywords:

thermoluminescent dosimeter, laser processing, optical spectroscopy, photo- and thermoluminescence

Acknowledgements:

The work was carried out by the staff of the Research Laboratory of Integrated Optics and Radio Photonics with the financial support of the Ministry of Science and Higher Education of the Russian Federation under agreement № 075-03-2020-237/1 dated March 5, 2020 (internal project number FEWM-2020-0040), as well as within the framework of the grant of the Russian Science Foundation № 21-72-00124.

OCIS codes: 140.3390, 250.5230, 300.6360, 250.5230

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