9B2 - The nature of the laser transition in CdS crystal at 90°K with two-photon excitation
- 1 September 1966
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Quantum Electronics
- Vol. 2 (9) , 584-586
- https://doi.org/10.1109/jqe.1966.1074068
Abstract
An oscillation at the wavelength 4946 A in cadmium sulfide crystal is produced by two-photon excitation by ruby laser radiation. A two-photon absorption coefficient is measured at the wavelength 6943 A. The two-photon absorption coefficient is proportional to the light beam intensity and is equal to 1.0 cm-1at 50 W/cm2. The excitation lifetime in excited state is 10-9to 10-11seconds. It is proved that the oscillation in cadmium sulfide is due to the coupled excitations.Keywords
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