TY - JOUR TI - X-ray Linear Dichroism Microscopy AU - Ade, H. AU - Hsiao, B. T2 - Science AB - 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. DA - 1993/11/26/ PY - 1993/11/26/ DO - 10.1126/science.262.5138.1427 VL - 262 IS - 5138 SP - 1427-1429 J2 - Science LA - en OP - SN - 0036-8075 1095-9203 UR - http://dx.doi.org/10.1126/science.262.5138.1427 DB - Crossref ER -