Wavelength scaling of terahertz generation by gas ionization

Matteo Clerici; Marco Peccianti; Bruno E Schmidt; Lucia Caspani; Mostafa Shalaby; Mathieu Giguère; Antonio Lotti; Arnaud Couairon; François Légaré; Tsuneyuki Ozaki; Daniele Franco Angelo Faccio; Roberto Morandotti

doi:10.1103/PhysRevLett.110.253901

Wavelength scaling of terahertz generation by gas ionization

Matteo Clerici^*, Marco Peccianti, Bruno E Schmidt, Lucia Caspani, Mostafa Shalaby, Mathieu Giguère, Antonio Lotti, Arnaud Couairon, François Légaré, Tsuneyuki Ozaki, Daniele Franco Angelo Faccio, Roberto Morandotti

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

Low-frequency currents induced by ultrashort laser-driven ionization can emit extremely broadband, single-cycle terahertz pulses. We present a model that predicts a strong wavelength dependence of the THz emission in good agreement with our experimental study. This reveals that the combined effects of plasma currents rising proportionally to the square of the pump wavelength and wavelength-dependent focusing conditions lead to 30 times higher THz emission at 1800 nm compared to an 800 nm wavelength. Unrivaled single-cycle electric field strengths of 4.4 MV/cm are achieved with this compact table-top setup.

Original language	English
Article number	253901
Number of pages	5
Journal	Physical Review Letters
Volume	110
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.110.253901
Publication status	Published - 17 Jun 2013

Keywords

PULSES
FIELDS
EMISSION
AIR
TRANSIENTS
AMPLITUDES
TARGETS
MV/CM

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10.1103/PhysRevLett.110.253901

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title = "Wavelength scaling of terahertz generation by gas ionization",

abstract = "Low-frequency currents induced by ultrashort laser-driven ionization can emit extremely broadband, single-cycle terahertz pulses. We present a model that predicts a strong wavelength dependence of the THz emission in good agreement with our experimental study. This reveals that the combined effects of plasma currents rising proportionally to the square of the pump wavelength and wavelength-dependent focusing conditions lead to 30 times higher THz emission at 1800 nm compared to an 800 nm wavelength. Unrivaled single-cycle electric field strengths of 4.4 MV/cm are achieved with this compact table-top setup.",

keywords = "PULSES, FIELDS, EMISSION, AIR, TRANSIENTS, AMPLITUDES, TARGETS, MV/CM",

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doi = "10.1103/PhysRevLett.110.253901",

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T1 - Wavelength scaling of terahertz generation by gas ionization

AU - Clerici, Matteo

AU - Peccianti, Marco

AU - Schmidt, Bruno E

AU - Caspani, Lucia

AU - Shalaby, Mostafa

AU - Giguère, Mathieu

AU - Lotti, Antonio

AU - Couairon, Arnaud

AU - Légaré, François

AU - Ozaki, Tsuneyuki

AU - Faccio, Daniele Franco Angelo

AU - Morandotti, Roberto

PY - 2013/6/17

Y1 - 2013/6/17

N2 - Low-frequency currents induced by ultrashort laser-driven ionization can emit extremely broadband, single-cycle terahertz pulses. We present a model that predicts a strong wavelength dependence of the THz emission in good agreement with our experimental study. This reveals that the combined effects of plasma currents rising proportionally to the square of the pump wavelength and wavelength-dependent focusing conditions lead to 30 times higher THz emission at 1800 nm compared to an 800 nm wavelength. Unrivaled single-cycle electric field strengths of 4.4 MV/cm are achieved with this compact table-top setup.

AB - Low-frequency currents induced by ultrashort laser-driven ionization can emit extremely broadband, single-cycle terahertz pulses. We present a model that predicts a strong wavelength dependence of the THz emission in good agreement with our experimental study. This reveals that the combined effects of plasma currents rising proportionally to the square of the pump wavelength and wavelength-dependent focusing conditions lead to 30 times higher THz emission at 1800 nm compared to an 800 nm wavelength. Unrivaled single-cycle electric field strengths of 4.4 MV/cm are achieved with this compact table-top setup.

KW - PULSES

KW - FIELDS

KW - EMISSION

KW - AIR

KW - TRANSIENTS

KW - AMPLITUDES

KW - TARGETS

KW - MV/CM

U2 - 10.1103/PhysRevLett.110.253901

DO - 10.1103/PhysRevLett.110.253901

M3 - Article

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VL - 110

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

M1 - 253901

ER -

Wavelength scaling of terahertz generation by gas ionization

Abstract

Keywords

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