Abstract

We have developed a simple new technique for measuring absolute radiative quantum efficiencies of fluorescing ions in solids that can be applied to systems exhibiting concentration quenching of the fluorescence. The technique requires measurement of the photoacoustic signal and fluorescent lifetime as a function of ion concentration. Application of this method to the upper laser level of Nd³⁺ in ED2 glass yields a value for the quantum efficiency somewhat smaller than that found in previous estimates and measurements.

© 1978 Optical Society of America

Piezoelectric detection of photoacoustic signals

Michael M. Farrow, Roger K. Burnham, Max Auzanneau, Steven L. Olsen, Neil Purdie, and Edward M. Eyring
Appl. Opt. 17(7) 1093-1098 (1978)

Photoacoustic determination of the luminescent quantum efficiency of Yb³⁺ ions in lithium niobate

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Appl. Opt. 37(30) 7096-7099 (1998)

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Opt. Lett. 20(19) 2021-2023 (1995)

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