title: ÐÐ¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ñ ÑÐ¾ÑÑÐ°ÑÐ½ÑÑ ÑÑÑÐºÐ¾Ð»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Poling of phosphate glasses
Creators: name: Ð¨Ð°Ð²Ð»Ð¾Ð²Ð¸Ñ, ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ñ ÑÑÑÐºÐ¾Ð»
ÑÐ¾ÑÑÐ°ÑÐ½ÑÐµ ÑÑÑÐºÐ»Ð°
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Ð³ÐµÐ½ÐµÑÐ°ÑÐ¸Ñ Ð²ÑÐ¾ÑÐ¾Ð¹ Ð³Ð°ÑÐ¼Ð¾Ð½Ð¸ÐºÐ¸
ÑÐ°Ð·Ð¾Ð²ÑÐ¹ ÐºÐ¾Ð½ÑÑÐ°ÑÑ
glass poling
phosphate glasses
methaphosphates
pyrophosphates
orthoposphates
second harmonic generation
phase contrast

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description: The given work is devoted to studying process of poling of phosphate glass-es with varying compositions and structure. The research set the following goals: 1. Choice of phosphate glasses with structures, varying in the line of metha-, pyro-, ortho- and so on. Fabrication of samples for polariza-tion. 2. Providing of poling of chosen samples. 3. Investigation of poling results for each sample. 4. Compare the poling results for phosphate glasses with different struc-tures. The work was fulfilled on the premises of two institutes: S. I. Vavilov State Optical Institute and Saint Petersburg National Research Academic University of the Russian Academy of Sciences. Provided poling of phosphate glasses of varying composition and structure. Poled areas were studied with interferometric method (studying of phase contrast) and Maker Fringes method (measuring of effective-ness of second harmonic generation). By this data, the conclusion about the effec-tiveness of processes was made. Additionally, IR- and optical spectra of absorption were made, which reveal the absorption of atmospheric water and, in some cases, allow to estimate the depth of poled areas of glasses. For some sample microphoto-graphs of poled areas are given. Analysis of obtained results is given for glasses with different structure, poled under similar conditions. Discovered the significant difference in the behav-ior of polarization currents for glasses with different structure â for glasses with structure close to metaphosphate, polarization currents have non-standard shape (have a maximum), that is yet to be explained. Observable phase contrasts for each sample are very low. Discovered the destruction of the surface and the volume part of samples and other peculiarities, which distort Maker fringes, that make it impos-sible to make clear conclusion about the effectiveness of second harmonic genera-tion. The only can be stated, second harmonic is generated in poled glasses. To get reliable results, its interpretation and understanding of physical mech-anism of poling of phosphate glasses, additional research is needed.