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Polarization dependence of luminescence induced by two-photon excitation in LiF crystals with F 3 + laser color centers and the symmetry of the excited state

Polarization dependence of luminescence induced by two-photon excitation in LiF crystals with F 3... The energy level structure of F 3 + laser color centers in crystals of LiF is discussed. A high-power laser ( λ ex =920 nm) is used to excite luminescence from LiF crystals with F 3 + centers via two-photon absorption, and the dependence of the polarization and intensity of this luminescence on the polarization of the laser light is measured and calculated. It is shown that the two-photon transition involves the excitation of a previously unknown state of the F 3 + center—a spin singlet whose wave function has 1 A 1 symmetry. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physics of the Solid State Springer Journals

Polarization dependence of luminescence induced by two-photon excitation in LiF crystals with F 3 + laser color centers and the symmetry of the excited state

Basiev, T.; Ermakov, I.; Pukhov, K.
Physics of the Solid State , Volume 39 (8) – Aug 1, 1997
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References (7)

Publisher
Springer Journals
Copyright
Copyright © 1997 by American Institute of Physics
Subject
Physics; Solid State Physics and Spectroscopy
ISSN
1063-7834
eISSN
1090-6460
DOI
10.1134/1.1130047
Publisher site
See Article on Publisher Site

Abstract

The energy level structure of F 3 + laser color centers in crystals of LiF is discussed. A high-power laser ( λ ex =920 nm) is used to excite luminescence from LiF crystals with F 3 + centers via two-photon absorption, and the dependence of the polarization and intensity of this luminescence on the polarization of the laser light is measured and calculated. It is shown that the two-photon transition involves the excitation of a previously unknown state of the F 3 + center—a spin singlet whose wave function has 1 A 1 symmetry.

Journal

Physics of the Solid State – Springer Journals

Published: Aug 1, 1997

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