The circular polarization components of a vortex beam in a uniaxial crystal exhibit complex propagation characteristics. We demonstrate how the amount of splitting may be distinguished by use of a vortex beam. We predict and experimentally verify a threshold angle subtending the crystal and beam axes, below which the splitting is indistinguishable.
© 2007 Optical Society of America
Original Manuscript: July 2, 2007
Revised Manuscript: September 17, 2007
Manuscript Accepted: September 18, 2007
Published: October 19, 2007
T. Fadeyeva, Yu. Egorov, A. Rubass, G. A. Swartzlander, Jr., and A. Volyar, "Indistinguishability limit for off-axis vortex beams in uniaxial crystals," Opt. Lett. 32, 3116-3118 (2007)