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Title: Fine Structure of a Laser-Plasma Filament in Air

Abstract

The ability to select and stabilize a single filament during propagation of an ultrashort high-intensity laser pulse in air makes it possible to examine the longitudinal structure of the plasma channel left in its wake. We present detailed measurements of plasma density variations along laser propagation. Over the length of the filament, electron density variations of 3 orders of magnitude are measured. They display evidence of a meter-long postionization range, along which a self-guided structure is observed coupled with a low plasma density, corresponding to {approx}3 orders of magnitude decrease from the peak density level.

Authors:
; ;  [1]
  1. Racah Institute of Physics, Hebrew University, Jerusalem (Israel)
Publication Date:
OSTI Identifier:
20951238
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 15; Other Information: DOI: 10.1103/PhysRevLett.98.155002; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AIR; ELECTRON DENSITY; FILAMENTS; FINE STRUCTURE; LASERS; PLASMA; PLASMA DENSITY; PLASMA FILAMENT; PULSES

Citation Formats

Eisenmann, Shmuel, Pukhov, Anatoly, and Zigler, Arie. Fine Structure of a Laser-Plasma Filament in Air. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.155002.
Eisenmann, Shmuel, Pukhov, Anatoly, & Zigler, Arie. Fine Structure of a Laser-Plasma Filament in Air. United States. doi:10.1103/PHYSREVLETT.98.155002.
Eisenmann, Shmuel, Pukhov, Anatoly, and Zigler, Arie. Fri . "Fine Structure of a Laser-Plasma Filament in Air". United States. doi:10.1103/PHYSREVLETT.98.155002.
@article{osti_20951238,
title = {Fine Structure of a Laser-Plasma Filament in Air},
author = {Eisenmann, Shmuel and Pukhov, Anatoly and Zigler, Arie},
abstractNote = {The ability to select and stabilize a single filament during propagation of an ultrashort high-intensity laser pulse in air makes it possible to examine the longitudinal structure of the plasma channel left in its wake. We present detailed measurements of plasma density variations along laser propagation. Over the length of the filament, electron density variations of 3 orders of magnitude are measured. They display evidence of a meter-long postionization range, along which a self-guided structure is observed coupled with a low plasma density, corresponding to {approx}3 orders of magnitude decrease from the peak density level.},
doi = {10.1103/PHYSREVLETT.98.155002},
journal = {Physical Review Letters},
number = 15,
volume = 98,
place = {United States},
year = {Fri Apr 13 00:00:00 EDT 2007},
month = {Fri Apr 13 00:00:00 EDT 2007}
}