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Optical Engineering

Reconfigurable achromatic half-wave and quarter-wave retarder in near infrared using crystalline quartz plates
Author(s): Arijit Saha; Kallol Bhattacharya; Ajoy K. Chakraborty
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Paper Abstract

Birefringent wave plates, often referred to as retarders, generally exhibit a strong wavelength dependence. However, there is a real need for achromatic retarders that exhibit identical characteristics over a broad wavelength range. In this paper, we have studied the design and characteristics of a cascaded system of birefringent plates in the near infrared region. Here we have studied a cascaded system of three birefringent plates using matrix analysis and designed a system which, by suitable reorientation of one of the plates, may perform both as an achromatic quarter-wave plate and half-wave plate, over the wavelength range of 1000 to 1800 nm. An inexpensive design for such an achromatic combination using crystalline quartz is described. The new arrangement of three birefringent plates proposed has the promise of producing achromatic combinations with fairly good accuracy.

Paper Details

Date Published: 1 March 2011
PDF: 5 pages
Opt. Eng. 50(3) 034004 doi: 10.1117/1.3552666
Published in: Optical Engineering Volume 50, Issue 3
Show Author Affiliations
Arijit Saha, B.P. Poddar Institute of Management & Technology (India)
Kallol Bhattacharya, Univ. of Calcutta (India)
Ajoy K. Chakraborty, Univ. of Calcutta (India)


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