0470134 - FZÚ 2017 RIV US eng J - Journal Article
D'Angelo, F. - Němec, Hynek - Parekh, S.H. - Kužel, Petr - Bonn, M. - Turchinovich, D.
Self-referenced ultra-broadband transient terahertz spectroscopy using air-photonics.
Optics Express. Roč. 24, č. 9 (2016), s. 10157-10171. ISSN 1094-4087
R&D Projects: GA ČR GA13-12386S
Institutional support: RVO:68378271
Keywords : terahertz spectroscopy
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 3.307, year: 2016 ; AIS: 0.862, rok: 2016
DOI: https://doi.org/10.1364/OE.24.010157

Terahertz (THz) air-photonics employs nonlinear interactions of ultrashort laser pulses in air to generate and detect THz pulses. As air is virtually non-dispersive, the optical-THz phase matching condition is automatically met, thus permitting the generation and detection of ultra-broadband THz pulses covering the entire THz spectral range without any gaps. Air-photonics naturally offers unique opportunities for ultra-broadband transient THz spectroscopy, yet many critical challenges inherent to this technique must first be resolved. Here, we present explicit guidelines for ultra-broadband transient THz spectroscopy with air-photonics, including a novel method for self-referenced signal acquisition minimizing the phase error, and the numerically-accurate approach to the transient reflectance data analysis.
Permanent Link: http://hdl.handle.net/11104/0267858