| Quantitative analysis of the self-absorption and reemission effects on the emission spectrum of photoluminescence in right-angle excitation–detection configuration |
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| 引用本文： | 王振华,吴玉娥,张心正,云志强,李威,许京军. Quantitative analysis of the self-absorption and reemission effects on the emission spectrum of photoluminescence in right-angle excitation–detection configuration[J]. 中国物理 B, 2013, 0(11): 268-274 |
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| 作者姓名： | 王振华 吴玉娥 张心正 云志强 李威 许京军 |
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| 基金项目： | Project supported by the National Basic Research Program of China （Grant No. 2010CB934101）, the National Natural Science Foundation of China （Grant No. 11174161）, and the International S＆T Cooperation Program of China （Grant No. 2011DFA52870）.We thank Peter Hertel for valuable advices. |
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| 摘 要： | A theoretical approach based on differential radiative transport is proposed to quantitatively analyze the selfabsorption and reemission effects on the emission spectrum for right angle excitation–detection photoluminescence measurements,and the wavelength dependence of the reemission effect is taken into account.Simulations and experiments are performed using rhodamine 6G solutions in ethanol as model samples.It is shown that the self-absorption effect is the dominant effect on the detected spectrum by inducing pseudo red-shift and reducing total intensity;whereas the reemission effect partly compensates for signal decrease and also results in an apparent signal gain at the wavelengths without absorption.Both effects decrease with the decrease in the sample concentration and the propagation distance of the emission light inside the sample.We therefore suggest that diluted solutions are required for accurate photoluminescence spectrum measurements and photoluminescence-based measurements.
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| 关 键 词： | 发射光谱 光致发光 检测结构 定量分析 自吸收 直角 激励 辐射传输理论 |
Quantitative analysis of the self-absorption and reemission effects on the emission spectrum of photoluminescence in right-angle excitation-detection configuration |
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| Wang Zhen-Hua,Wu Yu-E,Zhang Xin-Zheng,Yun Zhi-Qiang,Li Wei,Xu Jing-Jun. Quantitative analysis of the self-absorption and reemission effects on the emission spectrum of photoluminescence in right-angle excitation-detection configuration[J]. Chinese Physics B, 2013, 0(11): 268-274 |
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| Authors: | Wang Zhen-Hua Wu Yu-E Zhang Xin-Zheng Yun Zhi-Qiang Li Wei Xu Jing-Jun |
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| Affiliation: | The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Applied Physics School and School of Physics, Nanka/University, Tianjin 300457, China |
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| Abstract: | photoluminescence, self-absorption effect, reemission effect, radiative transport |
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| Keywords: | photoluminescence self-absorption effect reemission effect radiative transport |
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