Y
Yohann Brelet
Researcher at École Polytechnique
Publications - 38
Citations - 652
Yohann Brelet is an academic researcher from École Polytechnique. The author has contributed to research in topics: Laser & Femtosecond. The author has an hindex of 14, co-authored 37 publications receiving 574 citations. Previous affiliations of Yohann Brelet include Université Paris-Saclay & University of Antwerp.
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Journal ArticleDOI
Self-seeded lasing in ionized air pumped by 800 nm femtosecond laser pulses
TL;DR: It is shown that self-seeding plays an important role in the observed intensity changes and is attributed to transitions between vibrational and rotational levels of the first negative band of the singly charged nitrogen molecule-ion.
Journal ArticleDOI
Superfilamentation in air.
Guillaume Point,Yohann Brelet,Aurélien Houard,Vytautas Jukna,C. Milián,Jérôme Carbonnel,Yi Liu,Arnaud Couairon,André Mysyrowicz +8 more
TL;DR: The interaction between a large number of laser filaments brought together using weak external focusing leads to the emergence of few filamentary structures reminiscent of standard filaments, but carrying a higher intensity.
Journal ArticleDOI
Radiofrequency plasma antenna generated by femtosecond laser filaments in air
Yohann Brelet,Aurélien Houard,Guillaume Point,Bernard Prade,Léonid Arantchouk,Jérôme Carbonnel,Yves-Bernard André,Michel Pellet,André Mysyrowicz +8 more
TL;DR: In this article, the authors demonstrate tunable radiofrequency emission from a meter-long linear plasma column produced in air at atmospheric pressure by femtosecond filamentation and subsequently converted into a long-lived discharge column by application of an external high voltage field.
Journal ArticleDOI
Lasing of ambient air with microjoule pulse energy pumped by a multi terawatt IR femtosecond laser
Guillaume Point,Yi Liu,Yohann Brelet,Sergey Mitryukovskiy,Pengji Ding,Aurélien Houard,André Mysyrowicz +6 more
TL;DR: The lasing action of atmospheric air pumped by an 800 nm femtosecond laser pulse with peak power up to 4 TW shows a doughnut profile, reflecting the spatial distribution of the pump-generated white-light continuum that acts as a seed for the lasing.
Journal ArticleDOI
Lasing of ambient air with microjoule pulse energy pumped by a multi-terawatt infrared femtosecond laser.
Guillaume Point,Yi Liu,Yohann Brelet,Sergey Mitryukovskiy,Pengji Ding,Aurélien Houard,André Mysyrowicz +6 more
TL;DR: In this article, the authors report on the lasing action of atmospheric air pumped by an 800-nm femtosecond laser pulse with peak power up to 4 TW, which shows a doughnut profile, reflecting the spatial distribution of the pump-generated white-light continuum that acts as a seed for lasing.