Improving supersonic flights with femtosecond laser filamentation | Zendy

Paul-Quentin Elias | Zendy; Nicolas Severac | Zendy; Jean-Marc Luyssen | Zendy; Y-B. André | Zendy; Ivan Doudet | Zendy; Benoît Wattellier | Zendy; Jean-Pierre Tobeli | Zendy; Sylvain Albert | Zendy; Bernard Mahieu | Zendy; Reynald Bur | Zendy; A. Mysyrowicz | Zendy; Aurélien Houard | Zendy

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Improving supersonic flights with femtosecond laser filamentation

Author(s) -

Paul-Quentin Elias,

Nicolas Severac,

Jean-Marc Luyssen,

Y-B. André,

Ivan Doudet,

Benoît Wattellier,

Jean-Pierre Tobeli,

Sylvain Albert,

Bernard Mahieu,

Reynald Bur,

A. Mysyrowicz,

Aurélien Houard

Publication year - 2018

Publication title -

science advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.928

H-Index - 146

ISSN - 2375-2548

DOI - 10.1126/sciadv.aau5239

Subject(s) - filamentation , femtosecond , supersonic speed , laser , drag , optics , materials science , aerospace engineering , physics , engineering

When a flying object becomes supersonic, a concomitant increase in drag leads to a considerable rise in fuel consumption. We show experimentally that an embarked terawatt femtosecond laser can significantly decrease this drag. We measured a 50% transient reduction of drag on a test model placed in a supersonic wind tunnel at Mach 3. This effect was initiated by the thin hot air column created in front of the supersonic object by filamentation of the laser pulse. We also show that this technique offers possibilities for steering.

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