Intensity dependence of the rapidity of a CO2 laser plasma shutter

G. McClelland; Alan Miller; J. Dempsey; Desmond Smith

doi:10.1016/0030-4018(79)90250-5

Intensity dependence of the rapidity of a CO₂ laser plasma shutter

G. McClelland, Alan Miller, J. Dempsey, Desmond Smith

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

A photo-conductive germanium hot-hole detector has been used to directly measure the cut-off time for transmission through a laser induced breakdown plasma. By employing a dust free atmosphere and controlled plasma initiation, the breakdown intensity was varied and its effect on the cut-off rapidity was investigated. The time taken for the transmitted signal to fall to half its initial value was found to be approximately inversely proportional to the breakdown intensity. This result is shown to be in agreement with conclusions reached by means of simple theory. © 1979.

Original language	English
Pages (from-to)	85-88
Number of pages	4
Journal	Optics Communications
Volume	31
Issue number	1
DOIs	https://doi.org/10.1016/0030-4018(79)90250-5
Publication status	Published - Oct 1979

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title = "Intensity dependence of the rapidity of a CO2 laser plasma shutter",

abstract = "A photo-conductive germanium hot-hole detector has been used to directly measure the cut-off time for transmission through a laser induced breakdown plasma. By employing a dust free atmosphere and controlled plasma initiation, the breakdown intensity was varied and its effect on the cut-off rapidity was investigated. The time taken for the transmitted signal to fall to half its initial value was found to be approximately inversely proportional to the breakdown intensity. This result is shown to be in agreement with conclusions reached by means of simple theory. {\textcopyright} 1979.",

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AU - Miller, Alan

AU - Dempsey, J.

AU - Smith, Desmond

PY - 1979/10

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N2 - A photo-conductive germanium hot-hole detector has been used to directly measure the cut-off time for transmission through a laser induced breakdown plasma. By employing a dust free atmosphere and controlled plasma initiation, the breakdown intensity was varied and its effect on the cut-off rapidity was investigated. The time taken for the transmitted signal to fall to half its initial value was found to be approximately inversely proportional to the breakdown intensity. This result is shown to be in agreement with conclusions reached by means of simple theory. © 1979.

AB - A photo-conductive germanium hot-hole detector has been used to directly measure the cut-off time for transmission through a laser induced breakdown plasma. By employing a dust free atmosphere and controlled plasma initiation, the breakdown intensity was varied and its effect on the cut-off rapidity was investigated. The time taken for the transmitted signal to fall to half its initial value was found to be approximately inversely proportional to the breakdown intensity. This result is shown to be in agreement with conclusions reached by means of simple theory. © 1979.

U2 - 10.1016/0030-4018(79)90250-5

DO - 10.1016/0030-4018(79)90250-5

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VL - 31

SP - 85

EP - 88

JO - Optics Communications

JF - Optics Communications

IS - 1

ER -

Intensity dependence of the rapidity of a CO2 laser plasma shutter

Abstract

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Intensity dependence of the rapidity of a CO₂ laser plasma shutter