Highly doped ruby filters for stray light reduction in SCATPAK II

C. E. Thomas; E. A. Lazarus; R. R. Kindsfather; S. Painter; P. Hays; M. Murakami

doi:10.1063/1.1139139

Highly doped ruby filters for stray light reduction in SCATPAK II

C. E. Thomas, E. A. Lazarus, R. R. Kindsfather, S. Painter, P. Hays, M. Murakami

Watershed Systems Modeling

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4 Scopus citations

Abstract

One of the major problems in Thomson scattering measurement of electron temperature is the suppression of stray light. Filters of AR-coated ruby with a high-percentage doping of Cr have been produced for use on SCATPAK II. The filters have negligible attenuation of the signal above 7000 Å and attenuate light at the laser line by a factor of ≃9. Experimental details of the filter performance, design, and fabrication are presented. The filter performance is compared with experimental measurements of the Cr-in-sapphire absorption cross section at the R₁ line. Ruby filters present a cost-effective method of stray light suppression for experiments using ruby lasers and the red-shifted portion of the scattered spectrum.

Original language	English
Pages (from-to)	1819-1821
Number of pages	3
Journal	Review of Scientific Instruments
Volume	57
Issue number	8
DOIs	https://doi.org/10.1063/1.1139139
State	Published - 1986

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title = "Highly doped ruby filters for stray light reduction in SCATPAK II",

abstract = "One of the major problems in Thomson scattering measurement of electron temperature is the suppression of stray light. Filters of AR-coated ruby with a high-percentage doping of Cr have been produced for use on SCATPAK II. The filters have negligible attenuation of the signal above 7000 {\AA} and attenuate light at the laser line by a factor of ≃9. Experimental details of the filter performance, design, and fabrication are presented. The filter performance is compared with experimental measurements of the Cr-in-sapphire absorption cross section at the R1 line. Ruby filters present a cost-effective method of stray light suppression for experiments using ruby lasers and the red-shifted portion of the scattered spectrum.",

author = "Thomas, \{C. E.\} and Lazarus, \{E. A.\} and Kindsfather, \{R. R.\} and S. Painter and P. Hays and M. Murakami",

year = "1986",

doi = "10.1063/1.1139139",

language = "English",

volume = "57",

pages = "1819--1821",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

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T1 - Highly doped ruby filters for stray light reduction in SCATPAK II

AU - Thomas, C. E.

AU - Lazarus, E. A.

AU - Kindsfather, R. R.

AU - Painter, S.

AU - Hays, P.

AU - Murakami, M.

PY - 1986

Y1 - 1986

N2 - One of the major problems in Thomson scattering measurement of electron temperature is the suppression of stray light. Filters of AR-coated ruby with a high-percentage doping of Cr have been produced for use on SCATPAK II. The filters have negligible attenuation of the signal above 7000 Å and attenuate light at the laser line by a factor of ≃9. Experimental details of the filter performance, design, and fabrication are presented. The filter performance is compared with experimental measurements of the Cr-in-sapphire absorption cross section at the R1 line. Ruby filters present a cost-effective method of stray light suppression for experiments using ruby lasers and the red-shifted portion of the scattered spectrum.

AB - One of the major problems in Thomson scattering measurement of electron temperature is the suppression of stray light. Filters of AR-coated ruby with a high-percentage doping of Cr have been produced for use on SCATPAK II. The filters have negligible attenuation of the signal above 7000 Å and attenuate light at the laser line by a factor of ≃9. Experimental details of the filter performance, design, and fabrication are presented. The filter performance is compared with experimental measurements of the Cr-in-sapphire absorption cross section at the R1 line. Ruby filters present a cost-effective method of stray light suppression for experiments using ruby lasers and the red-shifted portion of the scattered spectrum.

UR - https://www.scopus.com/pages/publications/36549091202

U2 - 10.1063/1.1139139

DO - 10.1063/1.1139139

M3 - Article

AN - SCOPUS:36549091202

SN - 0034-6748

VL - 57

SP - 1819

EP - 1821

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 8

ER -

Highly doped ruby filters for stray light reduction in SCATPAK II

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