A novel, nontransient, light-induced grating technique to study electronic excitation migration in laser crystals is described and demonstrated.
Using this technique, the diffusion of excitations over the level 4I11/2 was studied in Cr:Er:YSGG laser crystal, a laser medium used for efficient 2.79 μm lasers for medicine and other applications.
A surprisingly long distance of migration was found. The value obtained for the diffusion coefficient, D=7×10−7 cm2s−1, was several orders of magnitude higher than that predicted from the spectroscopic analysis; possible reasons for the disagreement are discussed.
© 1995 Optical Society of AmericaPDF Article
More Like This
M. A. Noginov, H. J. Caulfield, P. Venkateswarlu, M. Mahdi, and I. T. Sorokina
CWF39 Conference on Lasers and Electro-Optics (CLEO) 1996
T. Jensen, V. G. Ostroumov, and G. Huber
IL4 Advanced Solid State Lasers (ASSL) 1995
David M. Rines, Glen A. Rines, and Peter F. Moulton
PO7 Advanced Solid State Lasers (ASSL) 1995