Radiative trapping effects in ruby: 77 K to 300 K

Milton Birnbaum; Curtis L. Fincher; Jason Machan; Michael Bass

doi:10.1364/ILS.1986.WF8

International Laser Science Conference
Technical Digest Series (Optica Publishing Group, 1986),
paper WF8
•https://doi.org/10.1364/ILS.1986.WF8

Radiative trapping effects in ruby: 77 K to 300 K

Milton Birnbaum, Curtis L. Fincher, Jason Machan, and Michael Bass

International Laser Science Conference 1986

Seattle, Washington United States
21–25 October 1986
ISBN:

From the session
Symposium on Laser Cooling and Trapping: 2 (WF)

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M. Birnbaum, C. L. Fincher, J. Machan, and M. Bass, "Radiative trapping effects in ruby: 77 K to 300 K," in International Laser Science Conference, Technical Digest Series (Optica Publishing Group, 1986), paper WF8.

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Abstract

The fluorescent decay of the 2_E level of the Cr³⁺ over the range of 77 K to 300 K has been studied in experimental arrangements pro viding strong trapping of the O-phonon lines. At 300 K, rubies as large as 2.5 cm diameter by 28 cm length were used, packed in highly reflective BaSO₄ powder to provide adequate trapping of the O-phonon fluorescence. The measurements resulted in the explicit determination of the lifetime vibronic transitions and the O-phonon decay rate.

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