F
François Légaré
Researcher at Institut national de la recherche scientifique
Publications - 348
Citations - 9430
François Légaré is an academic researcher from Institut national de la recherche scientifique. The author has contributed to research in topics: Laser & Ionization. The author has an hindex of 46, co-authored 316 publications receiving 7514 citations. Previous affiliations of François Légaré include Harvard University & National Research Council.
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Journal ArticleDOI
Linking high harmonics from gases and solids
Giulio Vampa,T. J. Hammond,Nicolas Thiré,Bruno E. Schmidt,François Légaré,C. R. McDonald,Thomas Brabec,Paul B. Corkum +7 more
TL;DR: It is found that solid-state high harmonics are perturbed by fields so weak that they are present in conventional electronic circuits, thus opening a route to integrate electronics with attosecond and high-harmonic technology.
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Sub-laser-cycle electron pulses for probing molecular dynamics.
Hiromichi Niikura,François Légaré,R. Hasbani,André D. Bandrauk,Misha Ivanov,David M. Villeneuve,Paul B. Corkum +6 more
TL;DR: This work proposes that the electrons themselves can be exploited for ultrafast measurements, and uses a ‘molecular clock’, based on a vibrational wave packet in H2+, to show that distinct bunches of electrons appear during electron–ion collisions with high current densities, and durations of about 1 femtosecond (10-15 s).
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Exploiting the biological windows: current perspectives on fluorescent bioprobes emitting above 1000 nm
TL;DR: The focus is placed on recent discussions concerning the optimal choice of excitation and emission wavelengths for deep-tissue high-resolution optical bioimaging and on fluorescent bioprobes that have successfully been implemented in in vitro and in vivo applications.
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All-Optical Reconstruction of Crystal Band Structure
Giulio Vampa,T. J. Hammond,Nicolas Thiré,Bruno E. Schmidt,François Légaré,C. R. McDonald,Thomas Brabec,Dennis D. Klug,Paul B. Corkum,Paul B. Corkum +9 more
TL;DR: This work demonstrates an all-optical technique to reconstruct momentum-dependent band gaps by exploiting the coherent motion of electron-hole pairs driven by intense midinfrared femtosecond laser pulses, and identifies the split-off valence band as making the greatest contribution to tunneling to the conduction band.
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Wavelength scaling of high harmonic generation efficiency.
Andrew D. Shiner,Carlos Trallero-Herrero,N. Kajumba,H. C. Bandulet,D. Comtois,François Légaré,Mathieu Giguère,Jean-Claude Kieffer,Paul B. Corkum,David M. Villeneuve +9 more
TL;DR: An experimental study of the high harmonic yield over a wavelength range of 800-1850 nm found that the scaling at constant laser intensity is lambda(-6.3+/-1.1) in Xe and lambda(-(5-6)) in Kr over the wavelength range, somewhat worse than the theoretical predictions.