X-RAY LINEAR DICHROISM MICROSCOPY

被引：124
作者：
ADE, H [1 ]
HSIAO, B [1 ]
机构：
[1] DUPONT CO INC,EXPTL STN,WILMINGTON,DE 19880
来源：
SCIENCE | 1993年 / 262卷 / 5138期
关键词：
D O I：
10.1126/science.262.5138.1427
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Chemical-specific x-ray linear dichroism was observed in an x-ray microscope as evidenced by changes in relative contrast upon azimuthal rotation of the sample. As a demonstration, thin sections of a partially ordered polymer fiber were examined with a transmission x-ray microscope near the carbon K-shell absorption edge to provide chemical-specific imaging at 50-nanometer spatial resolution. The observed dichroism and change in contrast upon rotation arise from the polarization dependence of the near-edge x-ray absorption cross section and can be used to image the orientation of specific chemical bonds.
引用
收藏
页码：1427 / 1429
页数：3
相关论文
共 12 条
[1]   CHEMICAL CONTRAST IN X-RAY MICROSCOPY AND SPATIALLY RESOLVED XANES SPECTROSCOPY OF ORGANIC SPECIMENS [J].
ADE, H ;
ZHANG, X ;
CAMERON, S ;
COSTELLO, C ;
KIRZ, J ;
WILLIAMS, S .
SCIENCE, 1992, 258 (5084) :972-975
[2]  
[Anonymous], 1992, NEXAFS SPECTROSCOPY, DOI DOI 10.1007/978-3-662-02853-7
[3]  
[Anonymous], 1987, POLYM MICROSCOPY
[4]  
DOBB MG, 1977, J POLYM SCI POL PHYS, V15, P2201, DOI 10.1002/pol.1977.180151212
[5]   DIFFRACTION-LIMITED IMAGING IN A SCANNING-TRANSMISSION X-RAY MICROSCOPE [J].
JACOBSEN, C ;
WILLIAMS, S ;
ANDERSON, E ;
BROWNE, MT ;
BUCKLEY, CJ ;
KERN, D ;
KIRZ, J ;
RIVERS, M ;
ZHANG, X .
OPTICS COMMUNICATIONS, 1991, 86 (3-4) :351-364
[6]   RESOLUTION IN SOFT-X-RAY MICROSCOPES [J].
JACOBSEN, C ;
KIRZ, J ;
WILLIAMS, S .
ULTRAMICROSCOPY, 1992, 47 (1-3) :55-79
[7]   ORIENTATION OF ARACHIDATE CHAINS IN LANGMUIR-BLODGETT MONOLAYERS ON SI(111) [J].
OUTKA, DA ;
STOHR, J ;
RABE, JP ;
SWALEN, JD ;
ROTERMUND, HH .
PHYSICAL REVIEW LETTERS, 1987, 59 (12) :1321-1324
[8]  
STEIN RS, 1985, PHYS TODAY, V1, P74
[9]   ELEMENT-SPECIFIC MAGNETIC MICROSCOPY WITH CIRCULARLY POLARIZED X-RAYS [J].
STOHR, J ;
WU, Y ;
HERMSMEIER, BD ;
SAMANT, MG ;
HARP, GR ;
KORANDA, S ;
DUNHAM, D ;
TONNER, BP .
SCIENCE, 1993, 259 (5095) :658-661
[10]   ELECTRONIC-STRUCTURE AND ORIENTATION STUDIES OF UNDOPED POLY-3-ALKYL THIOPHENES ELECTROCHEMICALLY DEPOSITED ON PT AS STUDIED BY NEXAFS [J].
TOURILLON, G ;
MAHATSEKAKE, C ;
ANDRIEU, C ;
WILLIAMS, GP ;
GARRETT, RF ;
BRAUN, W .
SURFACE SCIENCE, 1988, 201 (1-2) :171-184
12