X-RAY FLUX ENHANCEMENT IN THIN-FILM WAVE-GUIDES USING RESONANT BEAM COUPLERS

Authors
FENG YP SINHA SK DECKMAN HW HASTINGS JB SIDDONS DP
Citation
Yp. Feng et al., X-RAY FLUX ENHANCEMENT IN THIN-FILM WAVE-GUIDES USING RESONANT BEAM COUPLERS, Physical review letters, 71(4), 1993, pp. 537-540
Citations number
8
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
71
Issue
4
Year of publication
1993
Pages
537 - 540
Database
ISI
SICI code
0031-9007(1993)71:4<537:XFEITW>2.0.ZU;2-V
Abstract
We present experimental evidence for achieving significant x-ray flux enhancement by coupling a highly collimated and monochromatic synchrot ron x-ray beam into a Si/polyimide/SiO2 thin-film waveguide. The obser ved 20-fold flux increase agrees with theoretical predictions and was limited only by absorption of the 1 angstrom x rays in the waveguide s tructure.