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5 March 2021 Spectroscopy of the lower lying energy levels in Pr3+ doped TlPb2Br5 and CsPbCl3 for mid-IR laser application
Uwe H. Hömmerich, AlAmin Kabir, Lanijah Flagg, Althea Bluiett, Clayton Yang, Sudhir Trivedi
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Proceedings Volume 11682, Optical Components and Materials XVIII; 116821C (2021) https://doi.org/10.1117/12.2576922
Event: SPIE OPTO, 2021, Online Only
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Abstract
Spectroscopic characteristics of the lower lying energy levels of Pr3+ doped into the low-phonon energy hosts CsPbCl3 and TlPb2Br5 were explored for mid-IR laser applications. Both crystals posses relatively large IR absorption cross-sections for their 3F4+3F3 and 3F2+3H6 excited states, which indicates efficient optical pumping at either ~1.5 µm and ~2.0 µm, respectively. Pr: TlPb2Br5 exhibited an efficient MIR emission at room temperature with a lifetime of ~37 ms making it a promising candidate for laser applications. Only weak MIR emission was observed from Pr: CsPbCl3 due to strong emission quenching. More details of the IR spectroscopy including temperature dependent spectral and lifetime studies will be presented at the conference.
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Uwe H. Hömmerich, AlAmin Kabir, Lanijah Flagg, Althea Bluiett, Clayton Yang, and Sudhir Trivedi "Spectroscopy of the lower lying energy levels in Pr3+ doped TlPb2Br5 and CsPbCl3 for mid-IR laser application", Proc. SPIE 11682, Optical Components and Materials XVIII, 116821C (5 March 2021); https://doi.org/10.1117/12.2576922
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KEYWORDS
Mid-IR
Laser applications
Spectroscopy
Optical pumping
Absorption
Crystals
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