X-ray diffraction effect from surface acoustic waves traveling on a deposited multilayer
Applied Optics, Vol. 49, Issue 11, pp. 2054-2058 (2010)
http://dx.doi.org/10.1364/AO.49.002054
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Abstract
We investigate the x-ray diffraction effects from surface acoustic waves (SAW) traveling along a multilayer. The diffraction intensity distribution depends on the incidence angle and the multilayer SAW (MLSAW) amplitude. Particularly, a small departure deviating from the Bragg incidence angle at a certain amplitude will produce a larger variation of the intensity distribution. This shows that the diffraction intensity from MLSAW has an extremely high sensitivity to the Bragg incidence angle, which is different from a SAW traveling along a solid surface without deposited layers. By carefully analyzing the relationship between the intensity distribution I and the incidence angle θ, the corresponding analytic expression of the intensity distribution is theoretically derived. Our theoretical prediction is in great agreement with the experimental results previously obtained. A theoretical model that can be applied to study the x-ray diffraction effect from MLSAW is developed. The extremely high sensitivity to the Bragg angle will help us in acousto-optic instrument research with MLSAW.
© 2010 Optical Society of America
OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(240.6690) Optics at surfaces : Surface waves
(260.0260) Physical optics : Physical optics
(340.0340) X-ray optics : X-ray optics
ToC Category:
Diffraction and Gratings
History
Original Manuscript: October 8, 2009
Revised Manuscript: March 7, 2010
Manuscript Accepted: March 12, 2010
Published: April 2, 2010
Citation
Jun Dong, Jianxia Qi, and Runcai Miao, "X-ray diffraction effect from surface acoustic waves traveling on a deposited multilayer," Appl. Opt. 49, 2054-2058 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-11-2054
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