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

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 detect...

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Bibliographic Details
Published inOptics express Vol. 23; no. 9; p. 11436
Main Authors Li, Chia-Yeh, Seletskiy, Denis V., Yang, Zhou, Sheik-Bahae, Mansoor
Format Journal Article
LanguageEnglish
Published United States 04.05.2015
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ISSN1094-4087
1094-4087
DOI10.1364/OE.23.011436

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Summary: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.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.23.011436