Calibration of the ruby R sub 1 and R sub 2 fluorescence shifts as a function of temperature from 0 to 600 K

Journal Article · Tue Dec 15 00:00:00 EST 1992 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.351951· OSTI ID:7035436

Ragan, D D; Gustavsen, R; Schiferl, D ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Recent work by Gupta and Shen (Appl. Phys Lett. {bold 58}, 583 (1991)) has shown that in a nonhydrostatic environment, the frequency of the ruby {ital R}{sub 2} line provides a reliable measure of the mean stress or pressure. When using the frequency of either the {ital R}{sub 1} or {ital R}{sub 2} line to measure pressure at nonambient temperature, it is necessary to know the temperature dependence of the line shift. Unfortunately, the shift of the {ital R}{sub 2} line with temperature has not been reported. The ruby {ital R}{sub 1} and {ital R}{sub 2} fluorescence shifts have been determined as a function of temperature from 15 to 600 K. Both can be fitted very well to the simple cubic forms {ital R}{sub 1}({ital T}) =14 423+4.49{times}10{sup {minus}2}{ital T}{minus}4.81{times}10{sup {minus}4}{ital T}{sup 2}+3.71{times}10{sup {minus}7}{ital T}{sup 3} cm{sup {minus}1} and {ital R}{sub 2}({ital T})=14 452 +3.00{times}10{sup {minus}2}{ital T}{minus}3.88{times}10{sup {minus}4}{ital T}{sup 2}+2.55{times}10{sup {minus}7}{ital T}{sup 3} cm{sup {minus}1}. From 300 to 600 K the shifts fit well to linear functions of temperature. In addition, it is found that the {ital R}{sub 1}-{ital R}{sub 2} splitting changes by about 3 cm{sup {minus}1} over the 600 K temperature range. Linewidths were found to vary both with temperature and from sample to sample.

• OSTI ID: 7035436
• Journal Information: Journal of Applied Physics; (United States), Vol. 72:12; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
PRESSURE MEASUREMENT
RUBY
FLUORESCENCE
CALIBRATION
LINE WIDTHS
SPECTRAL SHIFT
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
CORUNDUM
LUMINESCENCE
MINERALS
OXIDE MINERALS
TEMPERATURE RANGE
440800* - Miscellaneous Instrumentation- (1990-)