If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Ion Dynamics of Plasmas Induced in Elemental Targets by Femtosecond Laser Irradiation

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

The energies and number densities of ions emitted from laser-induced plasmas were studied by means of a simple time-of-flight technique. The plasmas were formed on solid elemental targets exposed to focused pulses from a Ti:Sapphire mode-locked laser and regenerative amplifier. The pulse energy and length were 1.0 mJ and 100 fs, respectively, with irradiance at the target of 2 X 10 13 W/cm2. Ion kinetic energies, number densities, and mass removal rates were measured as functions of atomic mass, repetition rate, and angular orientation of the target with respect to the detector. Ion velocities varied within the 5.0-30.0 km/s range, corresponding to an average kinetic energy of 20-50 eV. Observed angular distribution of ion energy and number density obeyed the simple cosine function, which varied slightly for different elements. The total number of atoms removed per pulse was about 2 X 10 13, while the ion fraction varied in the range of 3.0-5.0% for the majority of studied elements. The estimated total ion kinetic energy per pulse was ~ 10 14 eV, which corresponds to ~ 1.5% of laser pulse energy. Mass removal rates demonstrated a direct relationship to transport properties of free electrons.
More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more