On the role of excitation pulse duration on luminescence measurements

Autor:	Stephen W. Allison
Rok vydání:	2021
Předmět:	Decay time Materials science Duration (music) Applied Mathematics Rise time Phosphor thermometry Excitation pulse Atomic physics Luminescence Instrumentation Engineering (miscellaneous)
Zdroj:	Measurement Science and Technology. 32:064007
ISSN:	1361-6501 0957-0233
DOI:	10.1088/1361-6501/abf178
Popis:	Described here is an investigation into the effects of excitation pulse duration on the temporal character of luminescence of three characteristic thermographic phosphors: Mg4FGeO6:Mn, La2O2S:Eu, and YAG:Dy. Attention is first given to the build-up of the emission while the excitation pulse is on and its relation to temperature. Next, effects after pulse termination are addressed. For emission comprised of two or more characteristic decays, increasing the pulse duration will enhance the longer components relative to the shorter. For La2O2S:Eu, increasing the duration increases emission of successively longer-lived emitting states; and they display pronounced temperature dependence. For YAG:Dy, as excitation duration is increased, the main decay component used for thermometry is enhanced relative to two shorter components of less interest.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::42f1eeabb8345e2da8d115c80207004d https://doi.org/10.1088/1361-6501/abf178 Zobrazit plný text záznamu