Monomode Guiding of 10 16 W / cm 2 Laser Pulses over 100 Rayleigh Lengths in Hollow Capillary Dielectric Tubes
1999; American Physical Society; Volume: 82; Issue: 23 Linguagem: Inglês
10.1103/physrevlett.82.4655
ISSN1092-0145
AutoresF. Dorchies, J.-R. Marquès, B. Cros, G. Matthieussent, C. Courtois, T. Vélikoroussov, P. Audebert, J. P. Geindre, S. Rebibo, G. Hamoniaux, F. Amiranoff,
Tópico(s)Laser-Plasma Interactions and Diagnostics
ResumoMonomode guiding over 100 Rayleigh lengths (10 cm) of high intensity ultrashort laser pulses ( ${10}^{16}\mathrm{W}/{\mathrm{cm}}^{2}$, 120 fs) has been demonstrated in hollow dielectric capillary tubes (45--70 \ensuremath{\mu}m internal diameter) without inner wall damage. Analytical predictions for coupling conditions and damping length are confirmed experimentally for tubes under vacuum. With 5 to 40 mbar of He gas in the tube, when laser ionization occurs the energy and duration of the transmitted pulse decrease while its spectrum is broadened.
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