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Spectroscopy of Chromium Doped Garnets in a Wide Temperature Range

  • Humeyra Orucu (a1), Gonul Ozen (a2), John Collins (a3) and Baldassare Di Bartolo (a4)

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.

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References

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1. Ali, M.R. and Taher, S.M., Journal of Magnetism and Magnetic Materials 301, 433437 (2006).
2. Kalisky, Y., Progress in Quantum Electronics 28, 249303 (2004)
3. O'Donnell, K. P., Marshall, A., Yamaga, M., Henderson, B., and Cockayne, B., Journal of Luminescence 42, 365373 (1989)
4. Monteil, A., Nie, W., Madej, C., and Boulon, G., Opt. and Quant. Electronics 22, S247 (1990)

Keywords

Spectroscopy of Chromium Doped Garnets in a Wide Temperature Range

  • Humeyra Orucu (a1), Gonul Ozen (a2), John Collins (a3) and Baldassare Di Bartolo (a4)

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