| Characteristics of the crystalline and luminescence properties of a-plane GaN films grown on γ-LiAlO2 （302） substrates |
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| 引用本文： | 冯春霞,黄立华,王剑波,赵永凯,黄惠杰. Characteristics of the crystalline and luminescence properties of a-plane GaN films grown on γ-LiAlO2 （302） substrates[J]. 中国光学快报(英文版), 2011, 0(9): 78-81 |
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| 作者姓名： | 冯春霞 黄立华 王剑波 赵永凯 黄惠杰 |
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| 作者单位： | Shanghai Institute of Optics and Fine Mechanics;Chinese Academy of Sciences;Graduate University of Chinese Academy of Sciences; |
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| 基金项目： | supported by the Important National Science and Technology Specific Projects of China (No. 2008ZX10401); the Shanghai Municipal Natural Science Foundation (No. 11ZR1441700) |
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| 摘 要： | A method of clarifying bioaerosol particles is proposed based on T-matrix. Size and shape characterizations are simultaneously acquired for individual bioaerosol particles by analyzing the spatial distribution of scattered light. The particle size can be determined according to the scattering intensity,while shape information can be obtained through asymmetry factor(AF) . The azimuthal distribution of the scattered light for spherical particles is symmetrical,whereas it is asymmetrical for non-spherical ones,and the asymmetry becomes intense with increasing asphericity. The calculated results denote that the 5 –10 scattering angle is an effective range to classify the bioaerosol particles that we are concerned of. The method is very useful in real-time environmental monitoring of particle sizes and shapes.
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| 关 键 词： | LiAlO2 发光性能 氮化镓 平面 衬底 化学气相沉积 GaN薄膜 电影 |
Theoretical studies on bioaerosol particle size and shape measurement from spatial scattering profiles |
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| Chunxia Feng ,,Lihua Huang ,Jianbo Wang ,Yongkai Zhao , Huijie Huang. Theoretical studies on bioaerosol particle size and shape measurement from spatial scattering profiles[J]. Chinese Optics Letters, 2011, 0(9): 78-81 |
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| Authors: | Chunxia Feng Lihua Huang Jianbo Wang Yongkai Zhao Huijie Huang |
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| Affiliation: | Chunxia Feng 1,2,Lihua Huang 1,Jianbo Wang 1,Yongkai Zhao 1,and Huijie Huang1 1 Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | A method of clarifying bioaerosol particles is proposed based on T-matrix. Size and shape characterizations are simultaneously acquired for individual bioaerosol particles by analyzing the spatial distribution of scattered light. The particle size can be determined according to the scattering intensity,while shape information can be obtained through asymmetry factor(AF) . The azimuthal distribution of the scattered light for spherical particles is symmetrical,whereas it is asymmetrical for non-spherical one... |
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