Multijoule scaling of laser-induced condensation in air

Petrarca, Massimo; Henin, Stefano; Stelmaszczyk, K.; Bock, S.; Kraft, S.; Schramm, U.; Vaneph, C.; Vogel, A.; Kasparian, Jérôme; Sauerbrey, R.; Weber, K.; Wöste, L.; Wolf, Jean-Pierre

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Title		Multijoule scaling of laser-induced condensation in air
Authors		Petrarca, Massimo Henin, Stefano Stelmaszczyk, K. Bock, S. Kraft, S. Schramm, U. Vaneph, C. Vogel, A. Kasparian, Jérôme Sauerbrey, R. Weber, K. Wöste, L. Wolf, Jean-Pierre show all authors [1 - 13]
Published in		Applied Physics Letters. 2011, vol. 99, no. 14, p. 141103
Abstract		Using 100 TW laser pulses, we demonstrate that laser-induced nanometric particle generation in air increases much faster than the beam-averaged incident intensity. This increase is due to a contribution from the photon bath, which adds up with the previously identified one from the filaments and becomes dominant above 550 GW/cm2. It appears related to ozone formation via multiphotondissociation of the oxygen molecules and demonstrates the critical need for further increasing the laser energy in view of macroscopic effects in laser-induced condensation.
Keywords		Ozone — Condensation — Photons — Nanoparticles — Particle generation
Identifiers		DOI: 10.1063/1.3646397
Full text		Article (Published version) (432 Kb) - Free access Other version: http://scitation.aip.org/content/aip/journal/apl/99/14/10.1063/1.3646397
Structures		Centres et instituts / Institut des sciences de l'environnement Faculté des sciences / Section de physique / Groupe de physique appliquée
Research groups		ISE Pôle Sciences ISE Climat
Citation (ISO format)		PETRARCA, Massimo et al. Multijoule scaling of laser-induced condensation in air. In: Applied Physics Letters, 2011, vol. 99, n° 14, p. 141103. https://archive-ouverte.unige.ch/unige:37104