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Spectroscopy of Chromium Doped Garnets in a Wide Temperature Range

Published online by Cambridge University Press:  01 February 2011

Humeyra Orucu ,
Gonul Ozen ,
John Collins  and
Baldassare Di Bartolo
Humeyra Orucu
Affiliation:
[email protected], Boston College, Physics Dept., 140 Comm. Ave, Chestnut Hill,, Higgins Hall 335, Boston, MA, 02467, United States, 617 412 8784
Gonul Ozen
Affiliation:
[email protected], Istanbul Technical University, Department of Physics, Istanbul, N/A, Turkey
John Collins
Affiliation:
[email protected], Wheaton College, Department of Physics, Norton, MA, 02766, United States
Baldassare Di Bartolo
Affiliation:
[email protected], Boston College, Department of Physics, Chestnut Hill, MA, 02467, United States
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Abstract

Chromium doped garnets are tunable solid state laser materials which emit in the red and near infrared. We have studied the emission spectra of Y3Al5O12:Cr3+ (YAG:Cr), Gd3Ga5O12:Cr3+ (GGG:Cr) and Gd3Sc2Ga3O12:Cr3+ (GSGG:Cr) in a wide range of temperatures 25-800 K and have related their spectroscopic properties to the interaction between the 2E and 4T2 energy levels of the chromium ion. The measurements included absorption, lifetime, luminescence under continuous and pulsed excitations, and thermal effects on sharp lines.

Keywords

luminescenceCrcrystal
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1053: Symposium EE – Phonon Engineering–Theory and Applications , 2007 , 1053-EE04-01
Copyright
Copyright © Materials Research Society 2008

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References

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