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High-Temperature, High-Pressure Optical CellsOptical cell constructed for measurement of thermal diffusivity of HgCdTe semiconductor by laser pulses. Container allows radiation from laser to enter one side of alloy sample, while allowing lower-energy infrared radiation to leave opposite side of sample so temperature rise read by sensor. Composed entirely of fused silica, cell includes two optical windows joined by tube. Cell withstands 1,000 degrees C cell-operating temperature and contains molten alloy at its 100-atmosphere vapor pressure. Finally, allows alloy to solidify without bursting even though alloy expands on cooling.
Document ID
19850000267
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Harris, R. P.
(University of Alabama)
Holland, L. R.
(University of Alabama)
Smith, R. E.
Date Acquired
August 12, 2013
Publication Date
October 1, 1985
Publication Information
Publication: NASA Tech Briefs
Volume: 9
Issue: 2
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MFS-26000
Accession Number
85B10267
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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