Abstract

Preformed plasma channels with parabolic radial density profiles enable the extended and stable optical guiding of high-intensity laser pulses. High-voltage discharge capillaries, commonly used for channel formation, have limited guiding length and opaque walls, complicating the diagnosis of the plasma within. This paper proposes a free-space gas channel produced by the collision of several gas flows. The collision of the gas flows forms an on-axis density depression surrounded by higher density walls. By offsetting the flows, we demonstrated the creation of what we believe is a novel vortex structure that exhibits a long-lived parabolic density profile. Once ionized, the resulting plasma density profile has a near-parabolic dependence appropriate for guiding. We then performed detailed two-dimensional (2D) fluid dynamics simulations to examine the properties and stability of the guiding structure.

© 2015 Optical Society of America

Full Article  |  PDF Article

Corrections

D. Kaganovich, J. P. Palastro, Y.-H. Chen, D. F. Gordon, M. H. Helle, and A. Ting, "Simulation of free-space optical guiding structure based on colliding gas flows: erratum," Appl. Opt. 55, 2852-2852 (2016)
https://www.osapublishing.org/ao/abstract.cfm?uri=ao-55-11-2852

OSA Recommended Articles
Gas-filled capillary discharge waveguides

D. J. Spence, A. Butler, and S. M. Hooker
J. Opt. Soc. Am. B 20(1) 138-151 (2003)

Optical guidance of terrawatt laser pulses by the implosion phase of a fast Z-pinch discharge in a gas-filled capillary

Tomonao Hosokai, Masaki Kando, Hideki Dewa, Hideyuki Kotaki, Syuji Kondo, Noboru Hasegawa, Kazuhisa Nakajima, and Kazuhiko Horioka
Opt. Lett. 25(1) 10-12 (2000)

High-density gas capillary nozzles manufactured by hybrid 3D laser machining technique from fused silica

Vidmantas Tomkus, Valdas Girdauskas, Juozas Dudutis, Paulius Gečys, Valdemar Stankevič, and Gediminas Račiukaitis
Opt. Express 26(21) 27965-27977 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

Supplementary Material (3)

NameDescription
» Visualization 1: MOV (1320 KB)      Animation for Fig. 2.
» Visualization 2: MOV (1335 KB)      Animation for Fig. 3.
» Visualization 3: MOV (2164 KB)      Animation for Fig. 4.

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 OSA member, or as an authorized user of your institution.

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

Figures (5)

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

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

Metrics

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

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