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Title: The time resolved measurement of ultrashort terahertz-band electric fields without an ultrashort probe

Abstract

The time-resolved detection of ultrashort pulsed THz-band electric field temporal profiles without an ultrashort laser probe is demonstrated. A non-linear interaction between a narrow-bandwidth optical probe and the THz pulse transposes the THz spectral intensity and phase information to the optical region, thereby generating an optical pulse whose temporal electric field envelope replicates the temporal profile of the real THz electric field. This optical envelope is characterised via an autocorrelation based FROG (frequency resolved optical gating) measurement, hence revealing the THz temporal profile. The combination of a narrow-bandwidth, long duration, optical probe, and self-referenced FROG makes the technique inherently immune to timing jitter between the optical probe and THz pulse and may find particular application where the THz field is not initially generated via ultrashort laser methods, such as the measurement of longitudinal electron bunch profiles in particle accelerators.

Authors:
;  [1];  [1];  [2]
  1. Accelerator Science and Technology Centre, STFC Daresbury National Laboratory, Warrington WA4 4AD (United Kingdom)
  2. (United Kingdom)
Publication Date:
OSTI Identifier:
22398992
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 18; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CORRELATIONS; DETECTION; ELECTRIC FIELDS; ELECTROMAGNETIC PULSES; ELECTRONS; NONLINEAR PROBLEMS; PARTICLES; PROBES; THZ RANGE

Citation Formats

Walsh, D. A., E-mail: david.walsh@stfc.ac.uk, Snedden, E. W., Jamison, S. P., and Photon Science Institute, The University of Manchester, Manchester M13 9PL. The time resolved measurement of ultrashort terahertz-band electric fields without an ultrashort probe. United States: N. p., 2015. Web. doi:10.1063/1.4919899.
Walsh, D. A., E-mail: david.walsh@stfc.ac.uk, Snedden, E. W., Jamison, S. P., & Photon Science Institute, The University of Manchester, Manchester M13 9PL. The time resolved measurement of ultrashort terahertz-band electric fields without an ultrashort probe. United States. doi:10.1063/1.4919899.
Walsh, D. A., E-mail: david.walsh@stfc.ac.uk, Snedden, E. W., Jamison, S. P., and Photon Science Institute, The University of Manchester, Manchester M13 9PL. Mon . "The time resolved measurement of ultrashort terahertz-band electric fields without an ultrashort probe". United States. doi:10.1063/1.4919899.
@article{osti_22398992,
title = {The time resolved measurement of ultrashort terahertz-band electric fields without an ultrashort probe},
author = {Walsh, D. A., E-mail: david.walsh@stfc.ac.uk and Snedden, E. W. and Jamison, S. P. and Photon Science Institute, The University of Manchester, Manchester M13 9PL},
abstractNote = {The time-resolved detection of ultrashort pulsed THz-band electric field temporal profiles without an ultrashort laser probe is demonstrated. A non-linear interaction between a narrow-bandwidth optical probe and the THz pulse transposes the THz spectral intensity and phase information to the optical region, thereby generating an optical pulse whose temporal electric field envelope replicates the temporal profile of the real THz electric field. This optical envelope is characterised via an autocorrelation based FROG (frequency resolved optical gating) measurement, hence revealing the THz temporal profile. The combination of a narrow-bandwidth, long duration, optical probe, and self-referenced FROG makes the technique inherently immune to timing jitter between the optical probe and THz pulse and may find particular application where the THz field is not initially generated via ultrashort laser methods, such as the measurement of longitudinal electron bunch profiles in particle accelerators.},
doi = {10.1063/1.4919899},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 18,
volume = 106,
place = {United States},
year = {2015},
month = {5}
}