米氏理论下悬浮粒子对水下激光传输的影响

张莹珞; 王英民; 黄爱萍

doi:doi:10.3788/CJL201845.0505002

中国激光, 2018, 45 (5): 0505002, 网络出版: 2018-05-02

米氏理论下悬浮粒子对水下激光传输的影响下载： 1261次

Influence of Suspended Particles Based on Mie Theory on Underwater Laser Transmission

张莹珞 ^1,2王英民 ^1,2,*黄爱萍 ^1,2

作者单位

¹ 西北工业大学深圳研究院, 广东深圳 518057

² 西北工业大学航海学院, 陕西西安 710072

图 & 表

图 1. 蒙特卡罗方法模拟光子运动流程图

Fig. 1. Flow chart of photon motion simulated by Monte Carlo method

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图 2. (a)复折射率实部对光学系数的影响;(b)复折射率虚部对光学系数的影响;(c)入射光波长对光学系数的影响;(d)复折射率及入射波长对反照率的影响

Fig. 2. (a) Influence of real part of the complex refractive index of particles on the optical coefficient; (b) influence of imaginary part of complex refractive index of particles on optical coefficient; (c) influence of incident light wavelength on optical coefficient; (d) influence of complex refractive index and incident wavelength on albedo

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图 3. (a)粒子尺寸对接收归一化能量的影响;(b)粒子尺寸对接收的光子的平均散射次数的影响

Fig. 3. (a) Influence of particle size on received normalized power; (b) influence of particle size on the average scattering times of the received photons

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图 4. (a)不同粒子半径对水下激光传输距离的影响;(b)半径为4 μm以内的粒子对水下激光传输距离的影响

Fig. 4. (a) Influence of different particle radii on underwater laser transmission distance; (b) influence of particle radius within 4 μm on underwater laser transmission distance

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图 5. (a)半径20 μm的粒子时的信道时延和接收光强;(b)半径5 μm 的粒子时的信道时延和接收光强

Fig. 5. (a) Channel delay and received light intensity of particles with radius of 20 μm; (b) channel delay and received light intensity of particles with radius of 5 μm

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表 1不同粒子的光学系数下的信道时延和接收光强峰值

Table1. Channel delay and received light intensity peak for optical coefficients of different particles

r /μm	m	b /m^-1	c /m^-1	ω	τ /ns	I_max /(W·m^-2)
5	1.18-0.002i	0.1321	0.1584	0.8340	0.3	3.0409
5	1.52-0.002i	0.144	0.1734	0.8330	0.3	2.1728
5	1.18-0.005i	0.1107	0.1613	0.6866	0.3	1.3705
5	1.52-0.005i	0.1192	0.1744	0.6835	0.3	1.1410
5	1.18-0.07i	0.0842	0.1663	0.5061	0.1	0.5542
5	1.52-0.07i	0.0898	0.1671	0.5371	0.1	0.5967
20	1.18-0.002i	1.6062	2.5716	0.6246	2	2.806×10^-4
20	1.52-0.002i	1.616	2.5844	0.6255	2	2.86×10^-4
20	1.18-0.005i	1.3698	2.5802	0.5309	2	2.492×10^-5
20	1.52-0.005i	1.4249	2.5767	0.5530	2	5.129×10^-5
20	1.18-0.07i	1.3372	2.5737	0.5195	2	2.118×10^-5
20	1.52-0.07i	1.4107	2.5778	0.5472	2	4.506×10^-5

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张莹珞, 王英民, 黄爱萍. 米氏理论下悬浮粒子对水下激光传输的影响[J]. 中国激光, 2018, 45(5): 0505002. Zhang Yingluo, Wang Yingmin, Huang Aiping. Influence of Suspended Particles Based on Mie Theory on Underwater Laser Transmission[J]. Chinese Journal of Lasers, 2018, 45(5): 0505002.

米氏理论下悬浮粒子对水下激光传输的影响下载： 1261次

图 1. 蒙特卡罗方法模拟光子运动流程图

Fig. 1. Flow chart of photon motion simulated by Monte Carlo method

图 2. (a)复折射率实部对光学系数的影响;(b)复折射率虚部对光学系数的影响;(c)入射光波长对光学系数的影响;(d)复折射率及入射波长对反照率的影响

图 3. (a)粒子尺寸对接收归一化能量的影响;(b)粒子尺寸对接收的光子的平均散射次数的影响

Fig. 3. (a) Influence of particle size on received normalized power; (b) influence of particle size on the average scattering times of the received photons

图 4. (a)不同粒子半径对水下激光传输距离的影响;(b)半径为4 μm以内的粒子对水下激光传输距离的影响

Fig. 4. (a) Influence of different particle radii on underwater laser transmission distance; (b) influence of particle radius within 4 μm on underwater laser transmission distance

图 5. (a)半径20 μm的粒子时的信道时延和接收光强;(b)半径5 μm 的粒子时的信道时延和接收光强

Fig. 5. (a) Channel delay and received light intensity of particles with radius of 20 μm; (b) channel delay and received light intensity of particles with radius of 5 μm

表 1不同粒子的光学系数下的信道时延和接收光强峰值

Table1. Channel delay and received light intensity peak for optical coefficients of different particles

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米氏理论下悬浮粒子对水下激光传输的影响 下载： 1261次

图 1. 蒙特卡罗方法模拟光子运动流程图

Fig. 1. Flow chart of photon motion simulated by Monte Carlo method

图 2. (a)复折射率实部对光学系数的影响;(b)复折射率虚部对光学系数的影响;(c)入射光波长对光学系数的影响;(d)复折射率及入射波长对反照率的影响

图 3. (a)粒子尺寸对接收归一化能量的影响;(b)粒子尺寸对接收的光子的平均散射次数的影响

Fig. 3. (a) Influence of particle size on received normalized power; (b) influence of particle size on the average scattering times of the received photons

图 4. (a)不同粒子半径对水下激光传输距离的影响;(b)半径为4 μm以内的粒子对水下激光传输距离的影响

Fig. 4. (a) Influence of different particle radii on underwater laser transmission distance; (b) influence of particle radius within 4 μm on underwater laser transmission distance

图 5. (a)半径20 μm的粒子时的信道时延和接收光强;(b)半径5 μm 的粒子时的信道时延和接收光强

Fig. 5. (a) Channel delay and received light intensity of particles with radius of 20 μm; (b) channel delay and received light intensity of particles with radius of 5 μm

表 1不同粒子的光学系数下的信道时延和接收光强峰值

Table1. Channel delay and received light intensity peak for optical coefficients of different particles

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