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Photon-Assisted Electron Energy Loss Spectroscopy and Ultrafast Imaging

Published online by Cambridge University Press:  03 July 2009

Archie Howie
Archie Howie*
Affiliation:
Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, UK
*
E-mail: ah30@hermes.cam.ac.uk
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Abstract

A variety of ways is described in which photons can be used not only for ultrafast electron microscopy but also to enormously widen the energy range of spatially-resolved electron spectroscopy. Periodic chains of femtosecond laser pulses are a particularly important and accurately timed source for single-shot imaging and diffraction as well as for several forms of pump-probe microscopy at even higher spatial resolution and sub-picosecond timing. Many exciting new fields are opened up for study by these developments. Ultrafast, single shot diffraction with intense pulses of X-rays supplemented by phase retrieval techniques may eventually offer a challenging alternative and purely photon-based route to dynamic imaging at high spatial resolution.

Keywords

pump-probe microscopyscanning electron acoustic microscopytwo-photon PEEMtime-gated detection.
Type
Special Section: Ultrafast Electron Microscopy
Information
Microscopy and Microanalysis , Volume 15 , Issue 4 , August 2009 , pp. 314 - 322
Copyright
Copyright © Microscopy Society of America 2009

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References

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