Space periodic thermionic emission and ablation of metallic targets by crossed surface plasma waves

Two surface plasma waves (SPWs) propagating at an angle to each other over a metal–free space interface, cause space periodic heating of electrons. As the electron temperature Te rises, thermal conduction transverse to the interface and collisional heat transfer to the lattice become dominant heat-l...

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Published in:Current science (Bangalore) 2004-06, Vol.86 (12), p.1608-1610
Main Authors: Jain, Ashim P., Parashar, J.
Format: Article
Language:English
Subjects:
Abstract spaces
Electromagnetic radiation
Electrons
Lasers
Materials
Mathematical lattices
Plasma waves
RESEARCH COMMUNICATIONS
Semiconductors
Thermionic emission
Thermionics
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Parashar, J.
description Two surface plasma waves (SPWs) propagating at an angle to each other over a metal–free space interface, cause space periodic heating of electrons. As the electron temperature Te rises, thermal conduction transverse to the interface and collisional heat transfer to the lattice become dominant heat-loss mechanisms. On the timescale of a few collision time, the lattice gets heated, giving rise to space periodic ablation that leads to the formation of grating structures. In case the SPW power is below the threshold for ablation, space periodic electron temperature results in space periodic thermionic emission.
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subjects Abstract spaces
Electromagnetic radiation
Electrons
Lasers
Materials
Mathematical lattices
Plasma waves
RESEARCH COMMUNICATIONS
Semiconductors
Thermionic emission
Thermionics
title Space periodic thermionic emission and ablation of metallic targets by crossed surface plasma waves
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