Application to Temperature Sensor Based on Green Up-conversion of Er3+ Doped Silicate Glass

Chengren Li; Bin Dong; Chengguo Ming; Mingkai Lei

doi:10.3390/s7112652

Application to Temperature Sensor Based on Green Up-conversion of Er³⁺ Doped Silicate Glass

Sensors (Basel). 2007 Nov 7;7(11):2652-2659. doi: 10.3390/s7112652.

Authors

Chengren Li¹, Bin Dong², Chengguo Ming¹, Mingkai Lei³

Affiliations

¹ College of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, China.
² School of Science, Dalian Nationalities University, Dalian 116600, China.
³ School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China. lshdg@sina.com.cn.

Abstract

The green up-conversion emissions centered at the wavelengths of about 534nmand 549nm of the Er³⁺ doped silicate glass were recorded, using a 978 nm semiconductorlaser diode (LD) as an excitation source. The fluorescence intensity ratio (FIR) of the greenup-conversion emissions at about 534nm and 549nm in the Er³⁺ doped silicate glass wasstudied as a function of temperature over the temperature range of 296K-673K. Themaximum sensitivity and the temperature resolution derived from the FIR of the green up-conversion emissions are approximately 0.0023K^-1 and 0.8K, respectively. It isdemonstrated that the prototype optical temperature sensor based on the FIR technique fromthe green up-conversion emissions in the Er³⁺ doped silicate glass could play a major role intemperature measurement.

Keywords: Er3+ doped silicate glass; Fluorescence intensity ratio; Green up-conversion emissions; Optical temperature sensor.