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Single-mode selection for hard x-ray cavity resonance.

Authors
  • Tsai, Yi-Wei
  • Chang, Ying-Yi
  • Wu, Yu-Hsin
  • Liu, Wen-Chung
  • Peng, Chou-Chi
  • Hsieh, Wen-Feng
  • Chang, Shih-Lin
Type
Published Article
Journal
Optics Letters
Publisher
The Optical Society
Publication Date
Jul 01, 2015
Volume
40
Issue
13
Pages
2969–2972
Identifiers
DOI: 10.1364/OL.40.002969
PMID: 26125344
Source
Medline
License
Unknown

Abstract

Single-mode selection is realized for hard x-ray cavity resonance using a three-mirror crystal device. The developed device consists of two coupled Si Fabry-Perot resonators (FPRs) and uses (12 4 0) backward diffraction to reflect back and forth the incident 14.4388 keV x-ray beam. The coupling between the two cavities gives an effective single-mode spectrum with a bandwidth of 0.81 meV. This method can be used to enhance the longitudinal coherent length without affecting transverse coherence, and is potentially useful in generating nearly total coherent beams in synchrotron or free-electron laser facilities.

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