Point temperature sensor based on green decay in an Er:ZBLALiP microsphere

A micrometer-sized point temperature sensor in Er:ZBLALiP microsphere is proposed based on the 550 nm green decay time versus the ambient temperature of the microsphere The point temperature sensor operates in a wide temperature range from 100 to 300 K with an accuracy of 2 K (C) 2009 Elsevier B.V. All rights reserved.