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Optical Engineering

New focusing mirror system for synchrotron radiation infrared beamlines
Author(s): Shean-Jen Chen; Chien-Kuang Kuan; Shen-Yaw Perng; Duan-Jen Wang; H. C. Ho; T. C. Tseng; Yi-Chung Lo; Chien-Te Chen
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Paper Abstract

A new Kirkpatrick-Baez-type focusing mirror system for use in synchrotron radiation IR beamlines is designed and fabricated. This mirror system, which contains two fifth-order-polynomial-corrected cylindrical mirrors, can collect and focus the long arc shape IR source from the bending magnet into a nearly perfect point image. To fabricate these two uncommon mirrors, 17-4 PH type stainless steel substrates are chosen and mechanically bent from planar to the desired fifth-order-polynomial-corrected cylindrical shapes with central radii of 3.74 and 5.43 m. The root mean square (rms) roughness and the slope error of these two mirrors are measured to be 0.3 nm and less than 6.3 µrad, respectively. The method for calculating the polynomial coefficients of both mirrors as well as the mirror fabrication process, mechanical design, and the method for adjusting the mirror shape using a long trace profiler are presented.

Paper Details

Date Published: 1 December 2004
PDF: 6 pages
Opt. Eng. 43(12) doi: 10.1117/1.1813438
Published in: Optical Engineering Volume 43, Issue 12
Show Author Affiliations
Shean-Jen Chen, National Cheng Kung Univ. (Taiwan)
Chien-Kuang Kuan, Synchrotron Radiation Research Ctr. (Taiwan)
Shen-Yaw Perng, Synchrotron Radiation Research Ctr. (Taiwan)
Duan-Jen Wang, Synchrotron Radiation Research Ctr. (Taiwan)
H. C. Ho, Synchrotron Radiation Research Ctr. (Taiwan)
T. C. Tseng, Synchrotron Radiation Research Ctr. (Taiwan)
Yi-Chung Lo, Synchrotron Radiation Research Ctr. (Taiwan)
Chien-Te Chen, Synchrotron Radiation Research Ctr. (Taiwan)

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