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High tolerance to spherical aberrations and defects of focus with a birefringent lens
1Department of Applied Physics, University of Calcutta, Kolkata, India. s.sanyal@cucc.ernet.in
Applied Optics
|August 3, 2002
Abstract:
We report a systematic investigation of the imaging behavior of an optical system consisting of a lens from a uniaxial birefringent crystal sandwiched between two linear polarizers into which primary spherical aberration has been introduced. The proposed system has higher tolerance to primary spherical aberration and has a larger depth of focus than an imaging system found with an isotropic lens. Some specific cases are computed and illustrated graphically.