Systematical study on the role of laser second harmonic generation in the terahertz air coherent detection

•The role of laser SHG in the THz air coherent detection is studied.•Two parameters are used to characterize the conversion efficiency of laser SHG.•A new scheme with a biased DC field to detect broad THz radiation is proposed. Terahertz field-induced laser second harmonic has been used to detect th...

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Veröffentlicht in:	Optics and laser technology 2020-10, Vol.130, p.106312, Article 106312
1. Verfasser:	Du, Hai-Wei
Format:	Artikel
Sprache:	eng
Schlagworte:	Air coherent detection Broadband Coherence Four-wave mixing Laser plasma interactions Laser plasmas Lasers Mathematical analysis Plasma interactions Second harmonic generation Terahertz
Online-Zugang:	Volltext
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