The formation of an intense filament controlled by interference of ultraviolet femtosecond pulses

Journal Article · Mon Mar 14 00:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3565158· OSTI ID:21518319

Yongdong, Wang; Yisan, Zhang; Peng, Chen; Liping, Shi; Xin, Lu; Jian, Wu; Liang'en, Ding; Heping, Zeng ^[1]

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1. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062 (China)

We experimentally investigated the formation of a wavelength-scale photonic plasma grating induced by interference-assisted coalescence of two noncollinear ultraviolet femtosecond laser pulses. The period of the created plasma grating decreased with the crossing angle of the interacting laser pulses. For a proper small crossing angle, the noncollinear ultraviolet filaments were coalesced and an intense single ultraviolet filament was formed with a diameter of 5 {mu}m which was below the focused limitation. This may provide a way to control ultraviolet femtosecond filamentation.

• OSTI ID: 21518319
• Journal Information: Applied Physics Letters, Vol. 98, Issue 11; Other Information: DOI: 10.1063/1.3565158; (c) 2011 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COALESCENCE
FILAMENTS
INTERFERENCE
LASER RADIATION
LIGHT TRANSMISSION
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PULSES
ULTRAVIOLET RADIATION
WAVELENGTHS
ELECTROMAGNETIC RADIATION
RADIATIONS
TRANSMISSION