УДК: 544.23.022

The formation of optical phase structures in the volume of phosphate glasses by means of thermal diffusion caused by the action of femtosecond laser radiation

Manshina, A.A., Povolotskiy, A.V., Sokolov, I.A., Kurushkin, M.V.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Маньшина А.А., Поволоцкий А.В., Соколов И.А., Курушкин М.В. Формирование оптических фазовых структур в объёме фосфатных стёкол за счёт термической диффузии, вызванной воздействием фемтосекундного лазерного излучения // Оптический журнал. 2015. Т. 82. № 2. С. 72–81.

Manshina A.A., Povolotskiy A.V., Sokolov I.A., Kurushkin M.V. The formation of optical phase structures in the volume of phosphate glasses by means of thermal diffusion caused by the action of femtosecond laser radiation [in Russian] // Opticheskii Zhurnal. 2015. V. 82. № 2. P. 72–81.

For citation (Journal of Optical Technology):

A. A. Man’shina, A. V. Povolotskiĭ, I. A. Sokolov, and M. V. Kurushkin, "The formation of optical phase structures in the volume of phosphate glasses by means of thermal diffusion caused by the action of femtosecond laser radiation," Journal of Optical Technology. 82(2), 120-126 (2015). https://doi.org/10.1364/JOT.82.000120

Abstract:

This paper discusses the physicochemical properties (density, microhardness, thermal effects, electrical conductivity, calculated volumes of fluctuation microvoids, and spectral studies) of phosphate and niobium–phosphate glasses containing lithium, sodium, and potassium oxides. It shows that, when one alkali oxide is replaced by another equivalent one, there is a nonlinear variation of the electric parameters, while all the other parameters vary linearly. Scanning with a femtosecond laser in the volume of lithium (sodium) niobium–phosphate glass produces high-contrast optical elements by means of the diffusion of lithium (sodium) ions from the focal center to the edges and counterdisplacement of niobium from the edges to the center.

Keywords:

niobium–phosphate glasses, physicochemical properties, lithium thermal diffusion, femtosecond laser scanning, high-contrast optical elements

Acknowledgements:

This work was carried out with the financial support of the Ministry of Education and Science of the Russian Federation as part of Contract No. 14.576.21.0003.

OCIS codes: 160.2750, 130.27550

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