Diffraction-free incomplete annular beam is produced using destructive interference between two modified and unmodified annular beams, where modification is done on its pitch using modulo operation. The holographically generated beam remains unchanged up to 1.5cm.
© 2006 Optical Society of America
(090.0090) Holography : Holography
(090.1760) Holography : Computer holography
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3300) Lasers and laser optics : Laser beam shaping
R. Chakraborty and A. Ghosh, "Generation of Incomplete Annular Beam," in Frontiers in Optics, OSA Technical Digest (CD) (Optical Society of America, 2006), paper JSuA45.
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