Investigation and Selection of Corundum Crystals with Various Activated Agents for the Creation of UV Detectors of 50–400 nm Wavelengths

Investigation and Selection of Corundum Crystals with Various Activated Agents for the Creation of UV Detectors of 50–400 nm Wavelengths

Studies of the scintillation characteristics and optical properties of corundum crystals with various activating agents were carried out, on the basis of which crystals with optimal parameters were selected for the development and creation of single-crystal integral and matrix coordinate-sensitive b...

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Bibliographic Details
Published in:Journal of contemporary physics Vol. 57; no. 3; pp. 289 - 296
Main Authors: Mkhitaryan, S. A., Vardanyan, J. G., Agadzhanyan, G. S., Nersisyan, M. N., Mnatsakanyan, A. R., Harutyunyan, A. P., Hovhannisyan, M. A.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-09-2022
Springer Nature B.V
Subjects:
Absorption spectra
Alloying elements
Broadband
Corundum
Detectors
Dopants
Optical properties
Particle and Nuclear Physics
Physics
Physics and Astronomy
Single crystals
Wavelengths
bond matrix
corundum
optical sensors
UV converter
crystal
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Summary:Studies of the scintillation characteristics and optical properties of corundum crystals with various activating agents were carried out, on the basis of which crystals with optimal parameters were selected for the development and creation of single-crystal integral and matrix coordinate-sensitive broadband UV detectors in the range of 50–400 nm. Spectral measurements of their luminescence and absorption were carried out at certain frequencies of irradiation of corundum crystals with various dopants. The optimal compositions and concentrations of impurities were determined. The absorption spectra of some selected samples of corundum were also studied depending on the conditions of thermal annealing. Resonant lines corresponding to each particular alloying element are identified and separated. The role of dopants in the formation of the overall absorption spectrum is studied and the possibilities of forced formation of the desired absorption spectrum in the range of wavelengths of interest are evaluated.
ISSN:1068-3372
1934-9378
DOI:10.1134/S1068337222030112