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The change of thermal properties under the exposure to fs-laser pulses

Hüttner, Bernd (2004) The change of thermal properties under the exposure to fs-laser pulses. In: Proceedings of SPIE, 5448, pp. 103-109. SPIE. High power laser ablation V, 2004-04-25 - 2004-04-30, Taos, NM (USA). ISBN 0-8194-5371-4. ISSN 0277-786X

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Abstract

We start with a short introduction of some newer thermodynamical approaches to the description of nonequilibrium processes related to the interaction of short laser pulses with matter. Then we shall use the example of electronic thermal conductivity to show why the equations usually derived in standard solid state theory have to be reconsidered. This is mandated by the loss of local thermal equilibrium, the nonstationarity, and the enhanced contribution from electron-electron scattering. Based on Boltzmann’s equation we derive an expression for the thermal conductivity with new qualitative and quantitative properties. These results are supported by comparison with experiments.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:The change of thermal properties under the exposure to fs-laser pulses
Authors:
AuthorsInstitution or Email of Authors
Hüttner, BerndUNSPECIFIED
Date:2004
Journal or Publication Title:Proceedings of SPIE
Refereed publication:Yes
In ISI Web of Science:No
Volume:5448
Page Range:pp. 103-109
Publisher:SPIE
Series Name:High-Power Laser Ablation
ISSN:0277-786X
ISBN:0-8194-5371-4
Status:Published
Keywords:nonequilibrium, thermal conductivity, diffusivity, metals, short laser pulses
Event Title:High power laser ablation V
Event Location:Taos, NM (USA)
Event Type:international Conference
Event Dates:2004-04-25 - 2004-04-30
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Dr.rer.nat. Bernd Hüttner
Deposited On:09 Feb 2006
Last Modified:14 Jan 2010 20:53

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