Long plasma channels formed by axicon-focused filaments

S. Akturk; B. Zhou; A. Houard; M. Franco; A. Couairon; A. Mysyrowicz

doi:10.1117/12.822527

19 December 2008 Long plasma channels formed by axicon-focused filaments

S. Akturk, B. Zhou, A. Houard, M. Franco, A. Couairon, A. Mysyrowicz

Proceedings Volume 7027, 15th International School on Quantum Electronics: Laser Physics and Applications; 70271E (2008) https://doi.org/10.1117/12.822527
Event: 15th International School on Quantum Electronics: Laser Physics and Applications, 2008, Bourgas, Bulgaria

Abstract

We show that axicon-focusing of ultrashort laser pulses facilitates the generation of filaments with specific spatial profiles in the form of nonlinear Bessel beams. For conditions ensuring that the energy arriving from each Bessel ring is in quasi equilibrium with that absorbed by multiphoton processes, these Bessel filaments generate meter long plasma channels whereas the same pulses focused by a standard lenses generate plasma channels which do not exceed a few centimeters long. Measurements with different lasers show that the length and the homogeneity of the plasma channels are enhanced by the use of large beams and sharp-tip (ideal) axicons whereas blunt-tip axicons induce a lens effect leading to oscillations of the plasma density along the propagation axis.

Citation Download Citation

S. Akturk, B. Zhou, A. Houard, M. Franco, A. Couairon, and A. Mysyrowicz "Long plasma channels formed by axicon-focused filaments", Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 70271E (19 December 2008); https://doi.org/10.1117/12.822527

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available