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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. 4, Iss. 1 — Mar. 30, 2000
  • pp: 7–10

Final Diffraction Patterns of the Beam Splitters used in the Soft XRay Interferometer by a He-Ne Laser

Chul-Han Oh, Dae-Uk Choi, Sung-Jin Park, M.R. Howells, and E.J. Moller  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 4, Issue 1, pp. 7-10 (2000)


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Abstract

The soft x-ray(10nm-100nm) interferometer is a modified Mach-Zehnder type interferometer and it consists of two beam-splitters and four totally reflecting mirrors. The beam-splitters used here are 50% transmission and 50% reflection grating type. The diffraction patterns of beam splitters(1st B.S.) were investigated with a He-Ne laser. The diffraction patterns produced by the soft x-ray interferometer (2nd B.S.) were also investigated in intensities positions. The diffraction patterns of 20 degree grazing incidence on the beam splitters(1st B.S.) show a circular array of spots. Both the reflected and the transmitted beams show the same patterns but symmetric circles on the screen. The maximum intensity appears roughly when n is in the zeroth and odd orders and the suppressed peak(missing order) appears when n is in even orders. Intensities of 3 center fringes(n = 0, <TEX>$\pm$</TEX>1) are stronger than others. These results confirm the reduced grating equation and make agree with the intensity distribution function. It was found that the final patterns produced by the soft x-ray interferometer (2nd B.S.) consisted of fine fringes which were caused by two of three diffraction beams that were arrived at the second beam-splitter.

© 2000 Optical Society of Korea

History
Original Manuscript: January 14, 2000
Published: March 1, 2000

Citation
Chul-Han Oh, Dae-Uk Choi, Sung-Jin Park, M.R. Howells, and E.J. Moller, "Final Diffraction Patterns of the Beam Splitters used in the Soft XRay Interferometer by a He-Ne Laser," J. Opt. Soc. Korea 4, 7-10 (2000)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-4-1-7


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References

  1. G. Kaindl, International Seminar on Atomic and Molecular Photoinoization, (Tsukuba, Japan, 1995)
  2. M. R. Howells et aI, Nuclear Instruments and Methods in Physics Research A 347, 182 (1994)
  3. E. J. Moller, Ph. D. Thesis, (LBNL-38901, Advanced Light Source, Lawrence Berkeley National Laboratory, p. 53, 1996)
  4. J. Chamberlain, (John Willey and Sons, Chichester,1979)
  5. Webster Cash, Appl. Opt. 24, 710 (1982) [CrossRef]
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