Adaptive helical mirror for generation of optical phase singularity
Applied Optics, Vol. 47, Issue 10, pp. 1378-1383 (2008)
http://dx.doi.org/10.1364/AO.47.001378
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Abstract
We report a specially designed adaptive mirror that can be bent into a helical shape for generation of an optical phase singularity. The adaptive helical mirror (AHM) reported here is a reflective device that can provide a continuous phase variation of the optical field in the azimuthal direction. The construction details and evaluation of the AHM are presented. A Michelson interferometer is used for the detection of the phase singularity. The AHM can be used for generation of a singular beam having multiple topological charges, positive or negative, just by controlling the excitation voltage of the AHM.
© 2008 Optical Society of America
OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(140.3300) Lasers and laser optics : Laser beam shaping
(230.4040) Optical devices : Mirrors
ToC Category:
Optical Devices
History
Original Manuscript: June 11, 2007
Revised Manuscript: September 16, 2007
Manuscript Accepted: January 16, 2008
Published: March 21, 2008
Citation
Devinder Pal Ghai, P. Senthilkumaran, and R. S. Sirohi, "Adaptive helical mirror for generation of optical phase singularity," Appl. Opt. 47, 1378-1383 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-10-1378
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