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Simultaneous determination of refractive index and thickness of moderately thick plane-parallel transparent glass plates using cyclic path optical configuration setup and a lateral shearing interferometer |
Applied Optics, Vol. 51, Issue 16, pp. 3533-3537 (2012)
http://dx.doi.org/10.1364/AO.51.003533
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Abstract
We present a simple technique for simultaneous determination of refractive index and thickness of moderately thick plane-parallel transparent glass plates (GPs) using a cyclic path optical configuration (CPOC) setup and a wedge shear plate as lateral shearing interferometer. The CPOC setup is used to simultaneously focus the counterpropagating converging beams at a common point at its hypotenuse arm. The apparent thickness and real thickness of the test GP are determined by observing three retrocollimation positions of the GP surfaces with respect to the common focus point. The RI is obtained by dividing the real thickness with apparent thickness of the GP. Presented in this paper are the results obtained for a test GP with a thickness of 14.983 mm and a RI of 1.515.
© 2012 Optical Society of America
OCIS Codes
(120.1680) Instrumentation, measurement, and metrology : Collimation
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
ToC Category:
Instrumentation, Measurement, and Metrology
History
Original Manuscript: December 5, 2011
Revised Manuscript: March 23, 2012
Manuscript Accepted: April 28, 2012
Published: May 31, 2012
Citation
Y. Pavan Kumar and Sanjib Chatterjee, "Simultaneous determination of refractive index and thickness of moderately thick plane-parallel transparent glass plates using cyclic path optical configuration setup and a lateral shearing interferometer," Appl. Opt. 51, 3533-3537 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-16-3533
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