Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

In-line holographic imaging and electron density extraction of ultrafast ionized air filaments

Not Accessible

Your library or personal account may give you access

Abstract

In-line spatial holographic methods are used to image the optical diffraction patterns of ultrafast laser produced plasma filaments in air. Using femtosecond laser pump-probe methods the plasma filament is produced and subsequently probed by a time-delayed probe beam traversing the filament at a right angle. The resulting probe beam image is recorded as a holographic diffraction pattern on a charge coupled device camera as the probe beam is diffracted due to the optical index change caused by the plasma filament. Extraction of the electron density in the filament down to 1016cm3 is obtained by using the Helmholtz wave equation beam propagation model to simulate the data. By varying the pump-probe optical time delay, a plasma electron recombination time of approximately 250ps is measured and agrees with our rate equation population kinetics model.

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical emission from ultrafast laser filament-produced air plasmas in the multiple filament regime

L. A. Finney, P. J. Skrodzki, M. Burger, X. Xiao, J. Nees, and I. Jovanovic
Opt. Express 26(22) 29110-29122 (2018)

Plasma filament investigation by transverse optical interferometry and terahertz scattering

Sergey Bodrov, Vladimir Bukin, Maxim Tsarev, Aleksey Murzanev, Sergey Garnov, Nickolay Aleksandrov, and Andrey Stepanov
Opt. Express 19(7) 6829-6835 (2011)

Measuring easily electron plasma densities in gases produced by ultrashort lasers and filaments

D. Abdollahpour, S. Suntsov, D. G. Papazoglou, and S. Tzortzakis
Opt. Express 19(18) 16866-16871 (2011)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (25)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved