Circular Dammann grating
Optics Letters, Vol. 28, Issue 22, pp. 2174-2176 (2003)
http://dx.doi.org/10.1364/OL.28.002174
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Abstract
A circular Dammann grating that can produce circular equal intensities at various orders in the far field is described. A set of parameters such as order, circular number, uniformity, and diffraction efficiency has been defined to describe the novel diffractive phase elements. Numerical solutions of binary-phase (0, π) circular Dammann gratings are given. The results of experiments with a four-order circular Dammann grating made by a lithographic technique are presented. This novel diffractive optical element should be highly interesting in a wide variety of practical applications.
© 2003 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(110.5220) Imaging systems : Photolithography
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(230.1360) Optical devices : Beam splitters
Citation
Changhe Zhou, Jia Jia, and Liren Liu, "Circular Dammann grating," Opt. Lett. 28, 2174-2176 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-22-2174
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