Effects of time separation on double-pulsed laser ablation of graphite

This work continues on previous investigations of elementary propellants for Ablative Laser Propulsion (ALP). The details on experimental methods used for alignment of a non-collinear pulse splitting apparatus are presented. Spatial and temporal coincidence of 100-ps wide pulses is demonstrated and...

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Bibliographic Details
Main Authors: Thompson, M Shane, Herren, Kenneth A, Lin, Jun, Pakhomov, Andrew V
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:This work continues on previous investigations of elementary propellants for Ablative Laser Propulsion (ALP). The details on experimental methods used for alignment of a non-collinear pulse splitting apparatus are presented. Spatial and temporal coincidence of 100-ps wide pulses is demonstrated and the first data is reported on the pulse separation effects studied by means of time-of-flight (TOF) energy analyzer on graphite. The data includes ion velocity and number density, measured as functions of pulse separation. Possible models of observed phenomena are discussed.
ISSN:0094-243X
DOI:10.1063/1.1582109