Bragg diffraction in a coherent X-ray scattering experiment

被引：6

作者：

Kaganer, VM

Jenichen, B

Ploog, KH

机构：

[1] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany

[2] Russian Acad Sci, Inst Crystallog, Moscow 117333, Russia

来源：

PHYSICA B | 2000年 / 283卷 / 1-3期

关键词：

coherence; X-ray scattering; Bragg diffraction;

D O I：

10.1016/S0921-4526(99)01995-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The requirements of a small X-ray source size and large distance from the source which limit the coherence length in coherent X-ray scattering experiments can be avoided by Bragg diffraction on perfect crystals. The coherence in setups which include crystal diffraction is investigated. The coherence length, limited by the extinction length of the Bragg diffraction, can be comparable or larger than the one typically obtained by wave propagation in free space. The increase of the coherence length is demonstrated in a laboratory experiment on a periodic surface grating with variable period. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：268 / 272

页数：5

相关论文

共 19 条

[1] CHARACTERIZATION OF THIN-LAYERS ON PERFECT CRYSTALS WITH A MULTIPURPOSE HIGH-RESOLUTION X-RAY DIFFRACTOMETER [J].

BARTELS, WJ .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1983, 1 (02) :338-345

[2] X-RAY-INTENSITY FLUCTUATION SPECTROSCOPY OBSERVATIONS OF CRITICAL-DYNAMICS IN FE3AL [J].

BRAUER, S ;

STEPHENSON, GB ;

SUTTON, M ;

BRUNING, R ;

DUFRESNE, E ;

MOCHRIE, SGJ ;

GRUBEL, G ;

ALSNIELSEN, J ;

ABERNATHY, DL .

PHYSICAL REVIEW LETTERS, 1995, 74 (11) :2010-2013

[3] ASYMMETRICALLY CUT CRYSTALS AS OPTICAL-ELEMENTS FOR HIGHLY COLLIMATED X-RAY-BEAMS [J].

BRAUER, S ;

STEPHENSON, GB ;

SUTTON, M ;

MOCHRIE, SGJ ;

DIERKER, SB ;

FLEMING, RM ;

PINDAK, R ;

ROBINSON, IK ;

GRUBEL, G ;

ALSNIELSEN, J ;

ABERNATHY, DL .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1995, 66 (02) :1506-1509

[4] PERFECT CRYSTALS IN THE ASYMMETRIC BRAGG GEOMETRY AS OPTICAL-ELEMENTS FOR COHERENT X-RAY-BEAMS [J].

BRAUER, S ;

STEPHENSON, GB ;

SUTTON, M .

JOURNAL OF SYNCHROTRON RADIATION, 1995, 2 :163-173

[5] OBSERVATION OF X-RAY SPECKLE BY COHERENT SCATTERING AT GRAZING-INCIDENCE [J].

CAI, ZH ;

LAI, B ;

YUN, WB ;

MCNULTY, I ;

HUANG, KG ;

RUSSELL, TP .

PHYSICAL REVIEW LETTERS, 1994, 73 (01) :82-85

[6] X-RAY PHOTON-CORRELATION SPECTROSCOPY STUDY OF BROWNIAN-MOTION OF GOLD COLLOIDS IN GLYCEROL [J].

DIERKER, SB ;

PINDAK, R ;

FLEMING, RM ;

ROBINSON, IK ;

BERMAN, L .

PHYSICAL REVIEW LETTERS, 1995, 75 (03) :449-452

[7] Theory of the use of more than two successive x-ray crystal reflections to obtain increased resolving power [J].

DuMond, JWM .

PHYSICAL REVIEW, 1937, 52 (08) :0872-0883

[8] MEASUREMENT OF THE COHERENCE LENGTH OF HIGHLY COLLIMATED X-RAYS FROM THE VISIBILITY OF EQUAL-THICKNESS FRINGES [J].

ISHIKAWA, T .

ACTA CRYSTALLOGRAPHICA SECTION A, 1988, 44 :496-499

[9]

James R. W., 1950, The optical principles of the diffraction of X-rays

[10] Speckle in coherent x-ray reflectivity from Si(111) wafers [J].

Libbert, JL ;

Pindak, R ;

Dierker, SB ;

Robinson, IK .

PHYSICAL REVIEW B, 1997, 56 (11) :6454-6457