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Multijoule scaling of laser-induced condensation in air

Stelmaszczyk, K.
Bock, S.
Kraft, S.
Schramm, U.
Vaneph, C.
Vogel, A.
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Published in Applied physics letters. 2011, vol. 99, no. 14, 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 OzoneCondensationPhotonsNanoparticlesParticle generation
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ISE Pôle Sciences
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PETRARCA, Massimo et al. Multijoule scaling of laser-induced condensation in air. In: Applied physics letters, 2011, vol. 99, n° 14, p. 141103. doi: 10.1063/1.3646397 https://archive-ouverte.unige.ch/unige:37104

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Deposited on : 2014-06-03

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