Micropropulsion using laser ablation

Micropropulsion using laser ablation

The micro-laser plasma thruster ({/content/3U34JN9D1AK4JRRE/xxlarge956.gif}LPT) is a new micropropulsion device that uses laser ablation to create very small thrusts (0.1--100 {/content/3U34JN9D1AK4JRRE/xxlarge956.gif}N) for pointing and positioning micro- and nano-satellites. In this paper, we disc...

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Veröffentlicht in:Applied physics. A, Materials science & processing Materials science & processing, 2004-09, Vol.79 (4-6), p.1385-1389
Hauptverfasser: PHIPPS, C. R, LUKE, J. R, LIPPERT, T, HAUER, M, WOKAUN, A
Format: Artikel
Sprache:eng
Schlagworte:
Ablation
Biological and medical applications
Devices
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser ablation
Laser applications
Micropropulsion
Nanocomposites
Nanomaterials
Nanostructure
Optics
Physics
Plasma (physics)
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Zusammenfassung:The micro-laser plasma thruster ({/content/3U34JN9D1AK4JRRE/xxlarge956.gif}LPT) is a new micropropulsion device that uses laser ablation to create very small thrusts (0.1--100 {/content/3U34JN9D1AK4JRRE/xxlarge956.gif}N) for pointing and positioning micro- and nano-satellites. In this paper, we discuss the expected performance of the {/content/3U34JN9D1AK4JRRE/xxlarge956.gif}LPT. For a ms-pulse device, target materials are restricted to those of low thermal conductivity, e.g. polymers. Volume ablation theory adequately describes their behavior. In a ns-pulse version, exhaust velocity can be an order of magnitude higher with correspondingly lower thrust-to-power ratio. The theory for surface absorbers describes the observed behavior.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-004-2787-7