Dramatic enhancement of xuv laser output using a multimode gas-filled capillary waveguide

Journal Article · Sat Jan 01 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.013804· OSTI ID:20650286

Mocek, T; Sebban, S; Bettaibi, I; Vorontsov, V ^[1]; McKenna, C M; Spence, D J; Gonsavles, A J; Hooker, S M ^[2]; Cros, B; Maynard, G ^[3]

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1. Laboratoire d'Optique Appliquee (LOA), ENSTA-Ecole Polytechnique, Chemin de la Huniere, 91761 Palaiseau (France)
2. Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom)
3. Laboratoire de Physique des Gaz et des Plasmas, Universite Paris-Sud, Batiment 210, 91405 Orsay (France)

We report a significant increase of the output of a 41.8-nm Xe{sup 8+} laser achieved by means of multimode guiding of high-intensity femtosecond laser pulses in a gas-filled dielectric capillary tube. The optimized lasing signal from a 15-mm-long capillary was nearly an order of magnitude higher than that from a gas cell of the same length. Simulations of the propagation of the pump laser pulse in the capillary confirmed that this enhancement is due to reflections from the capillary wall, which increase the length of the Xe{sup 8+} plasma column generated. The influence of gas pressure and focusing position on the lasing is also presented.

• OSTI ID: 20650286
• Journal Information: Physical Review. A, Vol. 71, Issue 1; Other Information: DOI: 10.1103/PhysRevA.71.013804; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CAPILLARIES
DIELECTRIC MATERIALS
EXTREME ULTRAVIOLET RADIATION
FOCUSING
LASER RADIATION
PLASMA
PULSES
REFLECTION
SIMULATION
WAVEGUIDES
XENON IONS