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题名: Angular characteristics of pulse laser echo signal in participating medium
作者: Zhang, X.; L. Guo; C. Liu and L. Chen
刊名: Zhongguo Jiguang/Chinese Journal of Lasers
出版日期: 2015
卷号: 42, 期号:2
文章类型: 期刊论文
英文摘要: To improve the echo signal-to-noise ratio and temporal-spatial resolution of active detection systems further, the two-way transient radiative transfer model of ultrashort pulse laser in participating medium is established using Monte Carlo method. Based on the model above, the influence of medium properties and target reflective characteristic on the angular characteristic of Gaussian pulse laser echo signal in isotropic scattering medium is analyzed. Research shows that the incident zenith angles of target echo signal have reached its steady state in optically thick medium, with the peak angle interval of 30~40 and the energy concentration range of 30~50, but the temporal broadening characteristic is irrelevant to angle intervals; the spectral attenuation coefficient affects the energy attenuation and pulse width of echo signal strongly, but the scattering albedo embodies in the energy attenuation of post-echo signal mainly; high intensity pre-echo signal caused by specular reflection weakens, and the absolute difference of target echo signal is extremely small between specular reflection and diffuse reflection, with weaker relevance. The reference for gated-camera design selection and pulsed laser wavelength is provided. , 2015, Science Press. All right reserved.
收录类别: EI
内容类型: 期刊论文
URI标识: http://ir.ciomp.ac.cn/handle/181722/56394
Appears in Collections:中科院长春光机所知识产出_期刊论文

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Recommended Citation:
Zhang, X.,L. Guo,C. Liu and L. Chen. Angular characteristics of pulse laser echo signal in participating medium[J]. Zhongguo Jiguang/Chinese Journal of Lasers,2015,42(2).
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