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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 14, Iss. 4 — Dec. 25, 2010
  • pp: 333–336

X-ray Diffraction from X-ray Waveguide Arrays for Generation of Coherent X-ray

Yong-Sung Park and Jae-Ho Choi  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 14, Issue 4, pp. 333-336 (2010)


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Abstract

The generation of coherent x-ray beams by using a multi-slit diffraction phenomenon is presented. The mode-confinement conditions in the x-ray waveguide (XWG) needed to obtain single-mode beams are determined. The XWGs are stacked to form an XWG array. The core of the XWG array is used as a slit in an opaque screen, similar to those used for visible light. Diffraction patterns that interfered constructively in the XWG array are investigated based on multi-slit diffraction theory. The irradiance distributions are studied at on observation screen. The FWHM of diffracted x-ray spectra were between <TEX>$1.67{\times}10^{-4}$</TEX> to <TEX>$3.30{\times}10^{-5}$</TEX> radians which lead to a spot-size of a few tens of micrometers on the screen at distance of 1 m. The intensities decrease with increase in the period of the XWG array, i.e. a thicker cladding, due to growth of the higher-order diffraction peaks.

© 2010 Optical Society of Korea

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(340.7480) X-ray optics : X-rays, soft x-rays, extreme ultraviolet (EUV)
(310.2785) Thin films : Guided wave applications

History
Original Manuscript: May 17, 2010
Revised Manuscript: September 20, 2010
Manuscript Accepted: September 20, 2010
Published: December 25, 2010

Citation
Yong-Sung Park and Jae-Ho Choi, "X-ray Diffraction from X-ray Waveguide Arrays for Generation of Coherent X-ray," J. Opt. Soc. Korea 14, 333-336 (2010)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-14-4-333


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