Wideband THz time domain spectroscopy set-up based on ultrafast pulsed laser: model and experiments

Peccianti, M; Morandotti, R

Risultato della ricerca: Paper

Abstract

We present an analytical model describing the full electromagnetic propagation in a THz Time Domain Spectroscopy (THz-TDS) laser based system. We pay particular attention to the modelling of the time-frequency behavior of all the stages, which compose our experimental set-up. In particular, our model takes into account the following features: pump beam focusing into the generation crystal; phase-matching between pump and THz pulses inside both the generation and detection crystals; chromatic dispersion and absorption inside the materials; Fabry-Perot effect in both the crystals; diffraction along the propagation, focalization and overlapping between THz and probe beams; Electro-Optic Sampling. The data obtained from our experimental set-up are in optimum agreement with simulations, so proving the effectiveness of our model.
Lingua originaleEnglish
Stato di pubblicazionePublished - 2014

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pulsed lasers
broadband
electromagnetic wave transmission
pumps
spectroscopy
crystals
phase matching
laser spectroscopy
electro-optics
sampling
propagation
probes
pulses
diffraction
simulation

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Wideband THz time domain spectroscopy set-up based on ultrafast pulsed laser: model and experiments. / Peccianti, M; Morandotti, R.

2014.

Risultato della ricerca: Paper

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title = "Wideband THz time domain spectroscopy set-up based on ultrafast pulsed laser: model and experiments",
abstract = "We present an analytical model describing the full electromagnetic propagation in a THz Time Domain Spectroscopy (THz-TDS) laser based system. We pay particular attention to the modelling of the time-frequency behavior of all the stages, which compose our experimental set-up. In particular, our model takes into account the following features: pump beam focusing into the generation crystal; phase-matching between pump and THz pulses inside both the generation and detection crystals; chromatic dispersion and absorption inside the materials; Fabry-Perot effect in both the crystals; diffraction along the propagation, focalization and overlapping between THz and probe beams; Electro-Optic Sampling. The data obtained from our experimental set-up are in optimum agreement with simulations, so proving the effectiveness of our model.",
author = "{Peccianti, M; Morandotti, R} and Alessandro Busacca and Salvatore Stivala and Cino, {Alfonso Carmelo} and Alessandro Tomasino",
year = "2014",
language = "English",

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TY - CONF

T1 - Wideband THz time domain spectroscopy set-up based on ultrafast pulsed laser: model and experiments

AU - Peccianti, M; Morandotti, R

AU - Busacca, Alessandro

AU - Stivala, Salvatore

AU - Cino, Alfonso Carmelo

AU - Tomasino, Alessandro

PY - 2014

Y1 - 2014

N2 - We present an analytical model describing the full electromagnetic propagation in a THz Time Domain Spectroscopy (THz-TDS) laser based system. We pay particular attention to the modelling of the time-frequency behavior of all the stages, which compose our experimental set-up. In particular, our model takes into account the following features: pump beam focusing into the generation crystal; phase-matching between pump and THz pulses inside both the generation and detection crystals; chromatic dispersion and absorption inside the materials; Fabry-Perot effect in both the crystals; diffraction along the propagation, focalization and overlapping between THz and probe beams; Electro-Optic Sampling. The data obtained from our experimental set-up are in optimum agreement with simulations, so proving the effectiveness of our model.

AB - We present an analytical model describing the full electromagnetic propagation in a THz Time Domain Spectroscopy (THz-TDS) laser based system. We pay particular attention to the modelling of the time-frequency behavior of all the stages, which compose our experimental set-up. In particular, our model takes into account the following features: pump beam focusing into the generation crystal; phase-matching between pump and THz pulses inside both the generation and detection crystals; chromatic dispersion and absorption inside the materials; Fabry-Perot effect in both the crystals; diffraction along the propagation, focalization and overlapping between THz and probe beams; Electro-Optic Sampling. The data obtained from our experimental set-up are in optimum agreement with simulations, so proving the effectiveness of our model.

UR - http://hdl.handle.net/10447/98178

M3 - Paper

ER -