Diffractive element design for resonant scanner angular correction: a beam retardation approach
Applied Optics, Vol. 45, Issue 32, pp. 8177-8185 (2006)
http://dx.doi.org/10.1364/AO.45.008177
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Abstract
A new approach for designing diffractive optical corrective elements with zooming capability to convert nonlinear sinusoidal scanning into linear scanning is proposed. Such a device will be useful for linearizing the angular scan of a resonant mirror scanner. The design methodology is to create a graded index of a refraction device as the reference design with its index of refraction parameters based on beam retardation through propagation in an inhomogeneous medium. The diffractive element is designed by utilizing a binarizing algorithm of the accumulated phase from transmission through the refractive element. In contrast to a prior approach, which was introduced based on the beam propagation through inhomogeneous media, the new approach takes beam diameters into consideration. This makes both the refractive element and its associated diffractive element more robust against beam fanning.
© 2006 Optical Society of America
OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1380) Diffraction and gratings : Binary optics
(050.1970) Diffraction and gratings : Diffractive optics
(220.0220) Optical design and fabrication : Optical design and fabrication
ToC Category:
Diffraction and Gratings
History
Original Manuscript: January 3, 2006
Revised Manuscript: June 20, 2006
Manuscript Accepted: June 23, 2006
Citation
Jed Khoury, Bahareh Haji-saeed, Christian P. Morath, Charles L. Woods, Sandip K. Sengupta, and John Kierstead, "Diffractive element design for resonant scanner angular correction: a beam retardation approach," Appl. Opt. 45, 8177-8185 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-32-8177
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