We show that a device consisting of an optical rotator placed between two identically oriented quarter-wave plates always acts as a halfwave retarder for some pair of orthogonal elliptically polarized states that can be selected by linear adjustment of the optical rotation and orientation of the quarter-wave plates.
© 1997 Optical Society of America
Original Manuscript: July 5, 1996
Revised Manuscript: November 25, 1996
Published: May 1, 1997
Rajendra Bhandari, "Halfwave retarder for all polarization states," Appl. Opt. 36, 2799-2801 (1997)