Polarization analysis of terahertz radiation generated by four-wave mixing in air

Aurélien Houard; Yi Liu; Bernard Prade; André Mysyrowicz

doi:10.1364/OL.33.001195

Polarization analysis of terahertz radiation generated by four-wave mixing in air

Aurélien Houard
, Yi Liu
, Bernard Prade
, André Mysyrowicz

Laboratory d'Optique Appliquée, ENSTA, CNRS-École Polytechnique

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

We examine the generation of terahertz (THz) by optical rectification of a fundamental infrared beam with its first harmonic in ionized air. From polarization measurements we identify an important, yet so far unreported (to our knowledge), cross term (χ_xyxy ⁽³⁾+χ_xyyx⁽³⁾) of the nonlinear susceptibility tensor. Omission of this term leads to an error by a factor of 10⁶ of the THz intensity obtained with certain polarization configurations.

langue originale	Anglais
Pages (de - à)	1195-1197
Nombre de pages	3
journal	Optics Letters
Volume	33
Numéro de publication	11
Les DOIs	https://doi.org/10.1364/OL.33.001195
état	Publié - 1 juin 2008

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10.1364/OL.33.001195

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title = "Polarization analysis of terahertz radiation generated by four-wave mixing in air",

abstract = "We examine the generation of terahertz (THz) by optical rectification of a fundamental infrared beam with its first harmonic in ionized air. From polarization measurements we identify an important, yet so far unreported (to our knowledge), cross term (χxyxy (3)+χxyyx(3)) of the nonlinear susceptibility tensor. Omission of this term leads to an error by a factor of 106 of the THz intensity obtained with certain polarization configurations.",

author = "Aur{\'e}lien Houard and Yi Liu and Bernard Prade and Andr{\'e} Mysyrowicz",

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AU - Houard, Aurélien

AU - Liu, Yi

AU - Prade, Bernard

AU - Mysyrowicz, André

PY - 2008/6/1

Y1 - 2008/6/1

N2 - We examine the generation of terahertz (THz) by optical rectification of a fundamental infrared beam with its first harmonic in ionized air. From polarization measurements we identify an important, yet so far unreported (to our knowledge), cross term (χxyxy (3)+χxyyx(3)) of the nonlinear susceptibility tensor. Omission of this term leads to an error by a factor of 106 of the THz intensity obtained with certain polarization configurations.

AB - We examine the generation of terahertz (THz) by optical rectification of a fundamental infrared beam with its first harmonic in ionized air. From polarization measurements we identify an important, yet so far unreported (to our knowledge), cross term (χxyxy (3)+χxyyx(3)) of the nonlinear susceptibility tensor. Omission of this term leads to an error by a factor of 106 of the THz intensity obtained with certain polarization configurations.

UR - https://www.scopus.com/pages/publications/45749110102

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DO - 10.1364/OL.33.001195

M3 - Article

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SN - 0146-9592

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JO - Optics Letters

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Polarization analysis of terahertz radiation generated by four-wave mixing in air

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