arXiv subjects

Grover A. Swartzlander, Jr.

Publications and source records attributed to Grover A. Swartzlander, Jr..

2 recordsLinked to original sources

arXiv2008

Contrast Enhancement of Binary Star System Using an Optical Vortex Coronagraph

Using an optical vortex coronagraph and simple adaptive optics techniques we have made the first convincing demonstration of an optical vortex coronagraph that is coupled to a star gazing telescope. In particular we suppressed by 97% the primary star of a barely resolvable binary system, Cor Caroli, having an effective angular separation of only 1.4 lambda/D. The secondary star suffered no suppression.

physics.optics↗

arXiv2007

Optical Rankine Vortex

Rankine vortex charateristics of a partially coherent optical vortex are explored using classical and physical optics. Unlike a perfectly coherent vortex mode, the circulation is not quantized. Excess circulation is predicted owing to the wave nature of the composite vortex fields. Based on these findings we propose a vortex stellar interferometer.

physics.optics↗