9 May 2009 Measurement and analysis of upconversion rates of Er:YAG at room temperature
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We have measured upconversion fluorescence resulting from the excitation of room temperature 1% and 5% Er:YAG by a 1532 nm nanosecond pump source. Measurements of the fluorescence decay from the 4I13/2, 4I11/2, 4F9/2 and 4S3/2 manifolds to the 4I15/2 ground state manifold were observed over a wide range of excitation pulse fluence values. A unique set of upconversion parameters were extracted from the measurements using a modification of the traditional rate equation model. Results of calculation are compared to measurement.
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G. A. Newburgh, G. A. Newburgh, T. Sanamyan, T. Sanamyan, M. Dubinskii, M. Dubinskii, "Measurement and analysis of upconversion rates of Er:YAG at room temperature", Proc. SPIE 7325, Laser Technology for Defense and Security V, 732503 (9 May 2009); doi: 10.1117/12.820043; https://doi.org/10.1117/12.820043

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