Physics
Scientific paper
Mar 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011opten..50c4004s&link_type=abstract
Optical Engineering, Volume 50, Issue 3, pp. 034004-034004-4 (2011).
Physics
1
Matrix Algebra, Optical Design Techniques, Optical Retarders, Filters, Zone Plates, And Polarizers, Optical System Design, Numerical Linear Algebra
Scientific paper
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.
Bhattacharya Kallol
Chakraborty Ajoy Kumar
Saha Arijit
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