4.6 Article

Broadband field-resolved terahertz detection via laser induced air plasma with controlled optical bias

Journal

OPTICS EXPRESS
Volume 23, Issue 9, Pages 11436-11443

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OE.23.011436

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Funding

  1. Nation Science Foundation (NSF) [DMR-1207489]
  2. Defense Threat Reduction Agency (DTRA)
  3. National Science Foundation [1160764]
  4. ZIF-Marie-Curie project (FP7-PEOPLE Program of Marie Curie Actions)
  5. Direct For Mathematical & Physical Scien
  6. Division Of Materials Research [1207489] Funding Source: National Science Foundation
  7. Office Of The Director
  8. Office Of Internatl Science &Engineering [1160764] Funding Source: National Science Foundation

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We report a robust method of coherent detection of broadband THz pulses using terahertz induced second-harmonic (TISH) generation in a laser induced air plasma together with a controlled second harmonic optical bias. We discuss a role of the bias field and its phase in the process of coherent detection. Phase-matching considerations subject to plasma dispersion are also examined. (C)2015 Optical Society of America

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