9 April 2011 Determination of optical sign of a crystal by conoscopic method
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Proceedings Volume 7822, Laser Optics 2010; 78220M (2011) https://doi.org/10.1117/12.885653
Event: Laser Optics 2010, 2010, St. Petersburg, Russian Federation
Abstract
To determine an optical sign of the investigated crystal plate, a conoscopic pattern of the latter is changed in an optical system without a polarizing microscope. Unknown optical sign of the crystal plate is determined by the nature of changes made to its conoscopic pattern by the plate of known optical sign. To change the conoscopic pattern, an auxiliary plane-parallel crystal plate of arbitrary thickness and known optical sign is used. Such plate either capable of rotation about its vertical axis is introduced to the optical system.
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O. Yu. Pikoul, "Determination of optical sign of a crystal by conoscopic method", Proc. SPIE 7822, Laser Optics 2010, 78220M (9 April 2011); doi: 10.1117/12.885653; https://doi.org/10.1117/12.885653
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