Two-dimensional performance of uniform irradiation with the use of an edge-softened lens array and spectral dispersion
Applied Optics, Vol. 46, Issue 16, pp. 3164-3168 (2007)
http://dx.doi.org/10.1364/AO.46.003164
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Abstract
A lens array composed of edge-softened elements is used to improve on-target irradiation uniformity in the Shenguang II Laser Facility, with which a Fresnel pattern of suppressed diffraction peaks is obtained. Additional uniformity can be reached by reducing short-wavelength interference speckles inside the pattern when the technique of smoothing by spectral dispersion is also used. Two-dimensional performance of irradiation is simulated and the results indicate that a pattern of steeper edges and a flat top can be achieved with this joint technique.
© 2007 Optical Society of America
OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(030.6600) Coherence and statistical optics : Statistical optics
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(260.2030) Physical optics : Dispersion
(350.2660) Other areas of optics : Fusion
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: December 6, 2006
Revised Manuscript: January 23, 2007
Manuscript Accepted: January 30, 2007
Published: May 15, 2007
Citation
Xiujuan Jiang, Shenlei Zhou, Zunqi Lin, and Jian Zhu, "Two-dimensional performance of uniform irradiation with the use of an edge-softened lens array and spectral dispersion," Appl. Opt. 46, 3164-3168 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-16-3164
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