Microwave guiding in air by a cylindrical filament array waveguide

Journal Article · Mon Mar 03 04:00:00 EST 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2889501· OSTI ID:21120589

Chateauneuf, M; Dubois, J ^[1]; Payeur, S; Kieffer, J -C ^[2]

---

1. Defence R and D Canada (DRDC) Valcartier, 2459 Pie-XI Blvd N., Quebec (Quebec) G3J 1X5 (Canada)
2. Institut National de la Recherche Scientifique Energie, Materiaux et Telecommunication (INRS-EMT), 1650 Boul. Lionel-Boulet, Varennes (Quebec) J3X 1S2 (Canada)

Microwave guiding was demonstrated over 16 cm in air using a large diameter hollow plasma waveguide. The waveguide was generated with the 100 TW femtosecond laser system at the Advanced Laser Light Source facility. A deformable mirror was used to spatially shape the intense laser pulses in order to generate hundreds of filaments judiciously distributed in a cylindrical shape, creating a cylindrical plasma wall that acts as a microwave waveguide. The microwaves were confined for about 10 ns, which corresponds to the free electron plasma wall recombination time. The characteristics of the plasma waveguide and the results of microwave guiding are presented.

• OSTI ID: 21120589
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 9 Vol. 92; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIR
CYLINDRICAL CONFIGURATION
ELECTRONS
LASERS
LIGHT SOURCES
MICROWAVE RADIATION
PLASMA
PULSES
RECOMBINATION
WAVEGUIDES