@inproceedings{60d99e4ec5cf4c20a0a6f0c126935943,
title = "Energy transfer upconversion measurements for popular neodymium-doped crystals",
abstract = "We report our investigations on measuring the energy transfer upconversion (ETU) parameter in various neodymiumdoped laser crystals (YAG, YVO4, GdVO4, KGW, and YLF) via the z-scan technique. Starting with a simple two-level macro-parameter spatially dependent rate equation model we obtain a good correlation for Nd:YAG at different concentrations and crystal temperatures, however the other crystals illustrate significant deviation between simulation and measurement. Currently we attribute this difference to additional ion-ion interactions in the respective samples, for which a more detailed model is currently being considered. Of the tested materials Nd:YAG appears to have the lowest ETU macro parameter, at around 0.35 x10-16 cm3/s for a 0.6 at.\% doping concentration, compared with nominally thrice this for 0.5 at\% Nd:YLF and almost an order of magnitude higher for the 0.5 at.\% vanadates (YVO4 and GdVO4). These values are significant for determining additional heat load in the respective gain media, especially when trying to increase the output power/energy from lasers employing these crystals, typically achieved by increasing the pump and cavity mode size.",
keywords = "Energy transfer upconversion, Nd:YAG, Neodymium doped laser crystals, Upconversion, Vanadate",
author = "Sungjin Yoon and Renpeng Yan and Beecher, \{Stephen J.\} and MacKenzie, \{Jacob I.\}",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; Solid State Lasers XXIV: Technology and Devices ; Conference date: 08-02-2015 Through 10-02-2015",
year = "2015",
doi = "10.1117/12.2082707",
language = "英语",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Clarkson, \{W. Andrew\} and Shori, \{Ramesh K.\}",
booktitle = "Solid State Lasers XXIV",
address = "美国",
}