Use of radiation from PC screen for non-destructive controlling the internal strains in transparent parts

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2013
• Main Authors: Maslov, V.P., Kachur, N.V.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2013
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/117736
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Use of radiation from PC screen for non-destructive controlling
 the internal strains in transparent parts / V.P. Maslov, N.V. Kachur // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2013. — Т. 16, № 3. — С. 297-299. — Бібліогр.: 9 назв. — англ.

It is known that the most widely used method to control internal strains is the
 optical polarization method. However, the sources of polarized radiation are the most
 problem issue of this method. There are some difficulties in using this method when
 testing large-scale optical parts, diameters of which exceed 500 mm. To choose an
 optical source suitable for solving these tasks, we have analyzed the design of liquidcrystal
 screens and ascertained the possibility to use their polarized radiation in tests of
 internal strains in optical parts of large dimensions. Adduced below are the results of
 investigations of internal strains in parts of sapphire and organic glass.