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Title: Single-shot 35 fs temporal resolution electron shadowgraphy

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4776686· OSTI ID:22162675
; ; ; ;  [1]
  1. Department of Physics and Astronomy, UCLA, Los Angeles, California 90095 (United States)

We obtain single-shot time-resolved shadowgraph images of the electromagnetic fields resulting from the interaction of a high intensity ultrashort laser pulse with a metal surface. Using a high brightness relativistic electron beam and a high streaking speed radiofrequency deflector, we report <35 fs temporal resolution enabling a direct visualization of the retarded-time dominated field evolution which follows the laser-induced charge emission. A model including the finite signal propagation speed well reproduces the data and yields measurements of fundamental parameters in short pulse laser-matter interaction such as the amount of emitted charge and the emission time scale.

OSTI ID:
22162675
Journal Information:
Applied Physics Letters, Vol. 102, Issue 2; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English