Temperature dependence of the dysprosium oxide (Dy2O3) based ceramics' Verdet constant

Alexey Yakovlev; Ilya Snetkov; Oleg Palashov

doi:10.1117/12.2520588

26 April 2019 Temperature dependence of the dysprosium oxide (Dy₂O₃) based ceramics' Verdet constant

Alexey Yakovlev, Ilya Snetkov, Oleg Palashov

Proceedings Volume 11033, High-Power, High-Energy, and High-Intensity Laser Technology IV; 110330X (2019) https://doi.org/10.1117/12.2520588
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

A series of optical ceramics based on dysprosium oxide were produced and characterized. The influence of ceramics composition on optical transmission of the obtained samples was investigated. The temperature dependences of the Verdet constant of dysprosium based ceramics with various compositions: (Dy_0.7Y_0.25La_0.05 )₂O₃, (Dy_0.85 Y_0.1La_0.05)₂O₃ and (Dy_0.9Y_0.05La_0.05)₂O₃ in the temperature range 80 – 294 K and in the wavelength range 405 – 1064 nm were studied and their approximations for the temperature – wavelength range are obtained. Cryogenic cooling by the liquid nitrogen leads to increase studied ceramics’ Verdet constant value in ~3.46 times, relatively 294 K, that allow to use this material, in cryogenically cooled Faraday isolators for Tm³⁺ and Ho³⁺ lasers, and for lasers operating in the visible spectral region.

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Alexey Yakovlev, Ilya Snetkov, and Oleg Palashov "Temperature dependence of the dysprosium oxide (Dy₂O₃) based ceramics' Verdet constant", Proc. SPIE 11033, High-Power, High-Energy, and High-Intensity Laser Technology IV, 110330X (26 April 2019); https://doi.org/10.1117/12.2520588

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KEYWORDS

Ceramics

Dysprosium

Magnetism

Cryogenics

Magneto-optics

Optical isolators

Oxides

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