Damage-free vibrational spectroscopy of biological materials in the electron microscope

Peter Rez (), Toshihiro Aoki, Katia March, Dvir Gur, Ondrej L. Krivanek, Niklas Dellby, Tracy C. Lovejoy, Sharon G. Wolf and Hagai Cohen
Additional contact information
Peter Rez: Arizona State University
Toshihiro Aoki: LeRoy Eyring Center for Solid State Science, Arizona State University
Katia March: Laboratoire de Physique des Solides, Université Paris-Sud, CNRS, UMR8502
Dvir Gur: Weizmann Institute of Science
Ondrej L. Krivanek: Arizona State University
Niklas Dellby: Nion Co.
Tracy C. Lovejoy: Nion Co.
Sharon G. Wolf: Weizmann Institute of Science
Hagai Cohen: Weizmann Institute of Science

Nature Communications, 2016, vol. 7, issue 1, 1-8

Abstract: Abstract Vibrational spectroscopy in the electron microscope would be transformative in the study of biological samples, provided that radiation damage could be prevented. However, electron beams typically create high-energy excitations that severely accelerate sample degradation. Here this major difficulty is overcome using an ‘aloof’ electron beam, positioned tens of nanometres away from the sample: high-energy excitations are suppressed, while vibrational modes of energies

Date: 2016
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DOI: 10.1038/ncomms10945

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