Effect of proton irradiation on optical properties and defect formation in crystals Gd3AlxGa5–xO12 (x = 2, 3)-Reference-Cited by-同舟云学术

Effect of proton irradiation on optical properties and defect formation in crystals Gd3AlxGa5–xO12 (x = 2, 3)

Published:2024-01-15 Issue:1 Volume: Page:
ISSN:1028-0960
Container-title:Поверхность. Рентгеновские, синхротронные и нейтронные исследования
language:
Short-container-title:Poverhnostʹ. Rentgenovskie, sinhrotronnye i nejtronnye issledovaniâ

Author:

Kasimova V. M.¹,Kozlova N. S.¹,Zabelina E. V.¹,Buzanov O. A.²,Lagov P. B.¹³,Pavlov Yu. S.³,Kulevoy T. V.⁴,Stolbunov V. S.⁴

Affiliation:

1. National University of Science and Technology "MISIS"

2. JSC FOMOS-MATERIALS

3. Institute of Physical Chemistry and Electrochemistry RAS

4. Kurchatov Complex for Theoretical and Experimental Physics NRC “Kurchatov Institute”

Abstract

The influence of proton irradiation with a dose of 50 Mrad (Si) on the optical properties and defect formation in crystals of the gadolinium-aluminum-gallium garnet with the substitution of aluminumand gallium in the cationic sublattice: Gd3Al2Ga3O12 (Al: Ga = 2:3) and Gd3Al3Ga2O12 (Al: Ga = 3:2) was studied. After proton irradiation, color of crystals changes: an additional absorption band appears in the transmittance of each crystal in the wavelength range 400–500 nm. This occures due to the formation of induced structural defects as color centers. The refractive indices n(λ) were determined by the Brewster spectrophotometric method and practically did not change for Al:Ga = 2:3 crystals, but significantly increased for Al:Ga = 3:2. There is a noticeable increase in the attenuation of the light in spectral dependences, which also indicates the formation of additional structural defects.

Publisher

The Russian Academy of Sciences

Reference26 articles.

1. Блистанов А.А. Кристаллы квантовой и нелинейной оптики: учебное пособие. М.: МИСиС, 2007. 432 с.

2. Каминский А.А. Физика и спектроскопия лазерных кристаллов. М.: Наука, 1986. 271 с.

3. Каминский А.А. Лазерные кристаллы. М.: Наука, 1975. 250 с.

4. Dorenbos P. // Radiation Detectors for Medical Applications. Springer, 2006. P. 191. https://doi.org./0.1007/1-4020-5093-3_8

5. Lecoq P. // Nucl. Instrum. Methods Phys. Res. A. 2016. V. 809. P. 130. https://doi.org./10.1016/j.nima.2015.08.041