Investigation of optical-field ionized plasmas by Thomson scattering

C. Michael Jost; Ernst E. Fill

doi:10.1117/12.425551

23 April 2001 Investigation of optical-field ionized plasmas by Thomson scattering

C. Michael Jost, Ernst E. Fill

Proceedings Volume 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter; (2001) https://doi.org/10.1117/12.425551
Event: 26th European Conference on Laser Interaction with Matter (ECLIM 2000), 2000, Prague, Czech Republic

Abstract

Using Thomson scattering of laser light we have studied optical-field ionized Hydrogen and Deuterium plasmas with respect to electron density, electron temperature and ion temperature. The plasmas were created by focusing 120 fs, 790 nm pulses of our Hz ATLAS Ti:sapphire laser system to intensities of up to 7 X 10¹⁶ W/cm². The measurements were performed for linear and elliptic polarization of the ionizing laser light. We find that the ion temperatures for Deuterium and Hydrogen are not identical, whereas the corresponding electron temperatures show no significant difference. Considering standard theory for optical-field ionization we would expect much higher electron temperatures for elliptic than for linear laser polarization. But for Deuterium the electron temperature for elliptic polarization. With increasing particle density ionization defocusing of the laser beam and heating of the electrons due to inverse bremsstrahlung gain in significance.

Citation Download Citation

C. Michael Jost and Ernst E. Fill "Investigation of optical-field ionized plasmas by Thomson scattering", Proc. SPIE 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter, (23 April 2001); https://doi.org/10.1117/12.425551

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