Helical filaments

Journal Article · Mon Jun 30 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4886960· OSTI ID:22304461

Barbieri, Nicholas; Lim, Khan; Durand, Magali; Baudelet, Matthieu; Richardson, Martin ^[1]; Hosseinimakarem, Zahra; Johnson, Eric ^[2]

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1. Townes Laser Institute, CREOL—The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816 (United States)
2. Micro-Photonics Laboratory – Center for Optical Material Science, Clemson, Anderson, South Carolina 29634 (United States)

The shaping of laser-induced filamenting plasma channels into helical structures by guiding the process with a non-diffracting beam is demonstrated. This was achieved using a Bessel beam superposition to control the phase of an ultrafast laser beam possessing intensities sufficient to induce Kerr effect driven non-linear self-focusing. Several experimental methods were used to characterize the resulting beams and confirm the observed structures are laser air filaments.

• OSTI ID: 22304461
• Journal Information: Applied Physics Letters, Vol. 104, Issue 26; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BEAMS
BESSEL FUNCTIONS
FILAMENTS
FOCUSING
HELICAL CONFIGURATION
KERR EFFECT
LASER RADIATION
NONLINEAR PROBLEMS
PLASMA FILAMENT