Increasing laser-driven THz emission with sawtooth pulse profiles

P González de Alaiza Martínez (1) , I Babushkin (2) , L Bergé (1) , Stefan Skupin (3) , E Cabrera-Granado (4) , C Köhler (5) , U Morgner (2) , A Husakou (6) , J Herrmann (6)

1 DAM/DIF - DAM Île-de-France
2 Leibniz Universität Hannover=Leibniz University Hannover
3 CELIA - Centre d'Etudes Lasers Intenses et Applications
4 UCM - Universidad Complutense de Madrid = Complutense University of Madrid [Madrid]
5 TU Dresden - Technische Universität Dresden = Dresden University of Technology
6 MBI - Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie

Broadband terahertz pulses are routinely produced with weak conversion effciencies by femtosecond laser pulses ionizing gases. We demonstrate that, by using multiple-frequency pulses approaching a sawtooth profile, this conversion effciency can exceed the percent level.

Domaines: Optique [physics.optics]; Physique Atomique [physics.atom-ph]; Physique des plasmas [physics.plasm-ph]

P González de Alaiza Martínez, I Babushkin, L Bergé, Stefan Skupin, E Cabrera-Granado, et al.. Increasing laser-driven THz emission with sawtooth pulse profiles. European Quantum Electronics Conference, Jun 2015, Munich, Germany. pp.EE_2_5. ⟨hal-01205532⟩