11 March 2013 Upconversion and 1.5 μm - 1.6 μm infrared emission studies of Er3+ doped in the low phonon-energy hosts KPb2Cl5 and KPb2Br5 via 1.5 μm laser excitation
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Proceedings Volume 8621, Optical Components and Materials X; 86211A (2013) https://doi.org/10.1117/12.2003192
Event: SPIE OPTO, 2013, San Francisco, California, United States
Abstract
In this study, cw and pulsed 1532 laser excitation of the 4I13/2 band of Er3+ was explored in the low phonon-energy hosts KPb2Cl5and KPb2Br5. Crystal growth along with upconversion and eye-safe emission (~ 1550 nm) studies were conducted on both samplesunder 140 mW of cw laser excitation. Excitation spectra and emission decay transients of the infrared (4I9/24I15/2) and green upconversion (2H11/2 + 4S3/24I15/2) revealed that energy transfer upconversion (ETU) is the origin of the infrared and the green upconversion under 1532 nm excitation. Spectral emission measurements indicate that the infrared upconversion is dominant relative to the green upconversion in both Er: KPb2Cl5and Er: KPb2Br5 crystals.
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Althea Bluiett, Ei E. Brown, Craig Hanley, Uwe Hömmerich, Sudhir Trivedi, "Upconversion and 1.5 μm - 1.6 μm infrared emission studies of Er3+ doped in the low phonon-energy hosts KPb2Cl5 and KPb2Br5 via 1.5 μm laser excitation", Proc. SPIE 8621, Optical Components and Materials X, 86211A (11 March 2013); doi: 10.1117/12.2003192; https://doi.org/10.1117/12.2003192
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