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Title: Generation of strong terahertz fields exceeding 8 MV/cm at 1 kHz and real-time beam profiling

Abstract

We demonstrate high-field (>8 MV/cm) terahertz generation at a high-repetition-rate (1 kHz) via two-color laser filamentation. Here, we use a cryogenically cooled femtosecond laser amplifier capable of producing 30 fs, 15 mJ pulses at 1 kHz as a driver, along with a combination of a thin dual-wavelength half-waveplate and a Brewster-angled silicon window to enhance terahertz generation and transmission. We also introduce a cost-effective, uncooled microbolometer camera for real-time terahertz beam profiling with two different modes.

Authors:
; ; ;  [1]
  1. Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742 (United States)
Publication Date:
OSTI Identifier:
22311358
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AMPLIFIERS; BEAM PROFILES; BOLOMETERS; CAMERAS; COLOR; LASER RADIATION; PULSES; SILICON; THZ RANGE; TRANSMISSION

Citation Formats

Oh, T. I., Yoo, Y. J., You, Y. S., and Kim, K. Y., E-mail: kykim@umd.edu. Generation of strong terahertz fields exceeding 8 MV/cm at 1 kHz and real-time beam profiling. United States: N. p., 2014. Web. doi:10.1063/1.4891678.
Oh, T. I., Yoo, Y. J., You, Y. S., & Kim, K. Y., E-mail: kykim@umd.edu. Generation of strong terahertz fields exceeding 8 MV/cm at 1 kHz and real-time beam profiling. United States. doi:10.1063/1.4891678.
Oh, T. I., Yoo, Y. J., You, Y. S., and Kim, K. Y., E-mail: kykim@umd.edu. Mon . "Generation of strong terahertz fields exceeding 8 MV/cm at 1 kHz and real-time beam profiling". United States. doi:10.1063/1.4891678.
@article{osti_22311358,
title = {Generation of strong terahertz fields exceeding 8 MV/cm at 1 kHz and real-time beam profiling},
author = {Oh, T. I. and Yoo, Y. J. and You, Y. S. and Kim, K. Y., E-mail: kykim@umd.edu},
abstractNote = {We demonstrate high-field (>8 MV/cm) terahertz generation at a high-repetition-rate (1 kHz) via two-color laser filamentation. Here, we use a cryogenically cooled femtosecond laser amplifier capable of producing 30 fs, 15 mJ pulses at 1 kHz as a driver, along with a combination of a thin dual-wavelength half-waveplate and a Brewster-angled silicon window to enhance terahertz generation and transmission. We also introduce a cost-effective, uncooled microbolometer camera for real-time terahertz beam profiling with two different modes.},
doi = {10.1063/1.4891678},
journal = {Applied Physics Letters},
number = 4,
volume = 105,
place = {United States},
year = {Mon Jul 28 00:00:00 EDT 2014},
month = {Mon Jul 28 00:00:00 EDT 2014}
}