Conduction band states and the 5d-4f laser transition of rare earth ion dopants

Stephen A. Payne; Christopher D. Marshall; Andy J. Bayramian; Janice K. Lawson

doi:10.1117/12.293425

1 November 1997 Conduction-band states and the 5d-4f laser transition of rare-earth ion dopants

Stephen A. Payne, Christopher D. Marshall, Andy J. Bayramian, Janice K. Lawson

Proceedings Volume 3176, Tunable Solid State Lasers; (1997) https://doi.org/10.1117/12.293425
Event: Tunable Solid State Lasers, 1996, Wroclaw, Poland

Abstract

We discuss how the interactions of the 5d orbital with the conduction band of the host medium play a crucial role in determining whether rare earth containing materials can serve as useful laser materials, based on their 5d-4f transition. To explore this issue, we examine the pump-probe spectra of Sm²⁺, Eu²⁺, and Ce³⁺ dopants in various fluoride and chloride crystals. In addition we suggest that the luminescence properties are also profoundly impacted by this interaction. The outstanding UV laser performance achieved by the Ce:LiSrAlF₆ crystal is rationalized in terms of the reduced overlap of conduction band states with the cerium ions.

Citation Download Citation

Stephen A. Payne, Christopher D. Marshall, Andy J. Bayramian, and Janice K. Lawson "Conduction-band states and the 5d-4f laser transition of rare-earth ion dopants", Proc. SPIE 3176, Tunable Solid State Lasers, (1 November 1997); https://doi.org/10.1117/12.293425

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