Interferometer setup for the observation of polarization structure near the unfolding point of an optical vortex beam in a birefringent crystal

• DOI: 10.1364/oe.20.013573
• Publication Date: 2012-06-01T15:20:01Z
• Authors: Maruthi M. Brunda...; Yoko Miyamoto; Rakesh Kumar Singh; Dinesh N. Naik; Mitsuo Takeda; Ken’ichi Nakagawa
• Keywords: Optical Rotation; Optical vortex; Light beam; Sagnac effect

We propose a novel birefringent interferometer setup for the study of unfolding points, and obtain first time to our knowledge spatial polarization structure very near point uniformly polarized optical vortex beam propagating in crystal. The is reconstructed by folding back two separated eigen-beams at output crystal into single using another identical crystal, resulting Mach-Zehnder type. also demonstrate that separation can be varied small rotation second