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Title: Atmospheric electromagnetic pulse propagation effects from thick targets in a terawatt laser target chamber

Abstract

Generation and effects of atmospherically propagated electromagnetic pulses (EMPs) initiated by photoelectrons ejected by the high density and temperature target surface plasmas from multiterawatt laser pulses are analyzed. These laser radiation pulse interactions can significantly increase noise levels, thereby obscuring data (sometimes totally) and may even damage sensitive probe and detection instrumentation. Noise effects from high energy density (approximately multiterawatt) laser pulses (~300–400 ps pulse widths) interacting with thick (~1 mm) metallic and dielectric solid targets and dielectric–metallic powder mixtures are interpreted as transient resonance radiation associated with surface charge fluctuations on the target chamber that functions as a radiating antenna. Effective solutions that minimize atmospheric EMP effects on internal and proximate electronic and electro-optical equipment external to the system based on systematic measurements using Moebius loop antennas, interpretations of signal periodicities, and dissipation indicators determining transient noise origin characteristics from target emissions are described. Analytic models for the effect of target chamber resonances and associated noise current and temperature in a probe diode laser are described.

Authors:
 [1];  [2];  [2]
  1. Harvard Univ., Cambridge, MA (United States). Department of Astronomy and Department of Earth and Planetary Science; Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1426976
Report Number(s):
SAND-2007-0913J
Journal ID: ISSN 0003-6935; APOPAI; 524199
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Applied Optics
Additional Journal Information:
Journal Volume: 46; Journal Issue: 24; Journal ID: ISSN 0003-6935
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; 47 OTHER INSTRUMENTATION

Citation Formats

Remo, John L., Adams, Richard G., and Jones, Michael C. Atmospheric electromagnetic pulse propagation effects from thick targets in a terawatt laser target chamber. United States: N. p., 2007. Web. doi:10.1364/AO.46.006166.
Remo, John L., Adams, Richard G., & Jones, Michael C. Atmospheric electromagnetic pulse propagation effects from thick targets in a terawatt laser target chamber. United States. doi:10.1364/AO.46.006166.
Remo, John L., Adams, Richard G., and Jones, Michael C. Thu . "Atmospheric electromagnetic pulse propagation effects from thick targets in a terawatt laser target chamber". United States. doi:10.1364/AO.46.006166. https://www.osti.gov/servlets/purl/1426976.
@article{osti_1426976,
title = {Atmospheric electromagnetic pulse propagation effects from thick targets in a terawatt laser target chamber},
author = {Remo, John L. and Adams, Richard G. and Jones, Michael C.},
abstractNote = {Generation and effects of atmospherically propagated electromagnetic pulses (EMPs) initiated by photoelectrons ejected by the high density and temperature target surface plasmas from multiterawatt laser pulses are analyzed. These laser radiation pulse interactions can significantly increase noise levels, thereby obscuring data (sometimes totally) and may even damage sensitive probe and detection instrumentation. Noise effects from high energy density (approximately multiterawatt) laser pulses (~300–400 ps pulse widths) interacting with thick (~1 mm) metallic and dielectric solid targets and dielectric–metallic powder mixtures are interpreted as transient resonance radiation associated with surface charge fluctuations on the target chamber that functions as a radiating antenna. Effective solutions that minimize atmospheric EMP effects on internal and proximate electronic and electro-optical equipment external to the system based on systematic measurements using Moebius loop antennas, interpretations of signal periodicities, and dissipation indicators determining transient noise origin characteristics from target emissions are described. Analytic models for the effect of target chamber resonances and associated noise current and temperature in a probe diode laser are described.},
doi = {10.1364/AO.46.006166},
journal = {Applied Optics},
number = 24,
volume = 46,
place = {United States},
year = {2007},
month = {8}
}

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Cited by: 11 works
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