Infrared Energy Level Lifetime Measurement System by Visible Upconversion Luminescence Detection Based on Double-Pulse Injection LD Module
FAN Xian-guang1, LI Ai-hua1, XU Ying-jie1, ZUO Yong2
1. School of Physics and Mechanical & Electrical Engineering, Xiamen University, Xiamen 361005, China 2. Changcheng Institute of Metrology & Measurement, The 1st Metrology & Measurement Research Center of National Defense Science Industry of China, Beijing 100095, China
Abstract:The lifetime of Er3+ and 4I13/2 energy level is of very significance for evaluating the application potential of Er3+-doped materials in optical communication. In the present article, based on the Er3+ excited state absorption upconversion (UC) luminescence under 980 nm double-pulse injection LD excitation, the authors detected the red UC luminescence intensity under different time gap between double pulses, then according to the dependence between UC red luminescence intensity and time gap between double pulses, deduced the fitting formula for obtained medial energy level lifetime of Er3+, and actualized the measurement of infrared level lifetime in visible region. So, combining photomultiplier tube (R2658) with double-pulse injection LD module with controllable time gap and synchronous pulse sample, we can obtain all the infrared level lifetime of Er3+, and this is a cost saving lifetime measurement system with μs resolution.
Key words:Excited state absorption upconversion;Double pulse;Lifetime measurement;Infrared medial level
范贤光1,李艾华1,许英杰1,左 勇2. 双脉冲注入式LD模块的红外能级寿命可见区测试系统[J]. 光谱学与光谱分析, 2012, 32(11): 2966-2970.
FAN Xian-guang1, LI Ai-hua1, XU Ying-jie1, ZUO Yong2. Infrared Energy Level Lifetime Measurement System by Visible Upconversion Luminescence Detection Based on Double-Pulse Injection LD Module. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(11): 2966-2970.
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