| Numéro |
J. Phys. IV France
Volume 04, Numéro C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique |
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|---|---|---|
| Page(s) | C7-401 - C7-404 | |
| DOI | https://doi.org/10.1051/jp4:1994794 | |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-401-C7-404
DOI: 10.1051/jp4:1994794
Photothermal and Optoelectronic Diagnostics Laboratory, Department of Mechanical Engineering, University of Toronto, Toronto, Canada, M5S 1A4
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-401-C7-404
DOI: 10.1051/jp4:1994794
Quantum efficiency and metastable lifetime measurements in ruby ( Cr 3+ : Al2O3) via lock-in rate-window photothermal radiometry
A. Mandelis, Z.H. Chen and R. BleissPhotothermal and Optoelectronic Diagnostics Laboratory, Department of Mechanical Engineering, University of Toronto, Toronto, Canada, M5S 1A4
Abstract
The newly developed photothermal detection technique of rate-window infrared radiometry has been applied to the measurement of the metastable state de-excitation parameters of a ruby laser rod. By applying the photothermal lock-in rate-window concept, the radiative lifetime and quantum efficiency of Cr3+ : Al2O3, have been measured with optimal signal-to-noise ratio (SNR) and simple, unambiguous interpretation from the extremum in the lock-in analyzer in-phase rate-window signal.
© EDP Sciences 1994