quartz wedge

quartz wedge

[′kwȯrts ′wej]
(optics)
A very thin wedge of quartz cut parallel to an optic axis; used to determine the sign of double refraction of biaxial crystals, and in other applications involving polarized light and its interaction with matter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Examining a quartz wedge between crossed polars in polychromatic light produces a range of colors (Fig.
Part 1 Using the First Order Red Compensator Part 2 Using the Quartz Wedge
determining birefringence with compensator and quartz wedge