Optical holography in the hard X-ray domain

N. Watanabe, H. Yokosuka, T. Ohigashi, H. Takano, A. Takeuchi, Y. Suzuki, S. Aoki

Research output: Contribution to journalConference articlepeer-review

26 Citations (Scopus)


Present status of our developments of x-ray holographic microscopes at SPring-8 BL20XU is described. A combination of the x-ray undulator and a zone plate enabled us to make a coherent x-ray source of around 0.1 μm size. Using this secondary source, two types of x-ray holographic microscopes were investigated. First, a Gabor microscope in point-projection geometry was tested. A tantalum 0.2 μm line-and-space pattern could be resolved. Second, using a zone plate as a beam splitter, a Fourier transform holographic microscope was tested. A tantalum 0.2 μm line-and-space pattern could be observed. Polystyrene beads of 2.8 μm and 0.8 μm in diameter could be observed. In Fourier transform holography, a reconstructed image of a specimen that is located out of the plane of the reference source is blurred. Numerical focusing of such an x-ray hologram could be successfully demonstrated.

Original languageEnglish
Pages (from-to)551-556
Number of pages6
JournalJournal De Physique. IV : JP
Publication statusPublished - 2003 Mar
Externally publishedYes
Event7th International Conference on X-Ray Microscopy - Grenoble, France
Duration: 2002 Jul 282002 Aug 2

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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