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  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1990),
  • paper QTUH4

Symmetry, selection roles, and Stark level assignments in Ho3+:Y3Al5O12

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Abstract

Stimulated IR emission (near 2 μm) is observed from crystals of Ho3+:Y3Al5O12 (Ho:YAG) as a consequence of electronic transitions from Stark levels of the 5I7 manifold to Stark levels within the ground state manifold 5I8 of trivalent holmium. Spectroscopic examination of other excited Ho3+(4f10[SL]J) manifolds having energies as high as 48,000 cm−1 reveals several possibilities for energy upconversion and the likely occurrence of stimulated emission in the UV.

© 1990 Optical Society of America

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