Quasi-Dammann grating with proportional intensity array spots
Optics Letters, Vol. 33, Issue 18, pp. 2023-2025 (2008)
http://dx.doi.org/10.1364/OL.33.002023
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Abstract
A quasi-Dammann grating is proposed to generate array spots with proportional-intensity orders in the far field. To describe the performance of the grating, the uniformities of the array spots are redefined. A two-dimensional even-sampling encode scheme is adopted to design the quasi-Dammann grating. Numerical solutions of the binary-phase quasi-Dammann grating with proportional-intensity orders are given. The experimental results with a third-order quasi-Dammann grating, which has an intensity proportion of 3:2:1 from zero order to second order, are presented.
© 2008 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
ToC Category:
Optical Devices
History
Original Manuscript: February 4, 2008
Revised Manuscript: June 28, 2008
Manuscript Accepted: June 30, 2008
Published: September 2, 2008
Citation
Shaoxia Li, Gang Yu, Caiyun Zheng, and Qiaofeng Tan, "Quasi-Dammann grating with proportional intensity array spots," Opt. Lett. 33, 2023-2025 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-18-2023
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