Statistical Characteristics of Laser Speckle Transmission through Mixed Particle Groups in Complex Random Environments

Mingjun WANG; Yiming ZHOU; Jingsong HE; Liangliang BAI; Jihua YU

doi:10.3788/gzxb20255406.0601002

Acta Photonica Sinica, Volume. 54, Issue 6, 0601002(2025)

Statistical Characteristics of Laser Speckle Transmission through Mixed Particle Groups in Complex Random Environments

Mingjun WANG^1,2,3、*, Yiming ZHOU¹, Jingsong HE¹, Liangliang BAI¹, and Jihua YU¹

Author Affiliations

¹School of Automation and Information Engineering，Xi'an University of Technology，Xi'an 710048，China

²Xi'an Key Laboratory of Wireless Optical Communication and Network Research，Xi'an 710048，China

³School of physics and Telecommunications Engineering，Shaanxi University of Technology，Hanzhong 723001，China

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Figures & Tables(11)

Fig. 1. Schematic diagram of laser speckle under the influence of mixed particle groups

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Fig. 2. Trend of scattering laser speckle intensity undulation cross-correlation function with transmission distance under complex and severe weather conditions

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Fig. 3. Autocorrelation function of the intensity distribution of laser speckle in complex severe weather

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Fig. 4. Intensity map of laser speckles produced by complex severe weather

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Fig. 5. Trend of laser speckle intensity undulation cross-correlation function with transmission distance

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Fig. 6. Autocorrelation function of intensity distribution of laser speckle

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Fig. 7. Plot of laser speckle intensity with different particle composition occupancies

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Fig. 8. Trend of scattering laser speckle intensity undulation cross-correlation function with transmission distance

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Fig. 9. Autocorrelation function of intensity distribution of laser speckle

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Fig. 10. Plot of laser speckle intensity with different percentage of particle composition

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Table 1. Particle radius and particle complex refractive index parameters

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Table 1. Particle radius and particle complex refractive index parameters

Type

Radius/mm

Real part of complex refractive index

（532 nm | 1 064 nm）

Imaginary part of complex refractive index

（532 nm | 1 064 nm）

Raindrops

1.0

1.332 | 1.327

1.96 \times 10^{- 9}

2.89 \times 10^{- 6}

Fog

0.05

1.332 | 1.327

1.96 \times 10^{- 9}

2.89 \times 10^{- 6}

Snowdrops

Ammonium sulfate

Silicate

Black Carbon

0.5

0.000 35

1.311 | 1.300

1.520 | 1.530

1.717 | 1.715

1.980 | 2.045

$1.49 \times 10^{- 9}$ | $1.90 \times 10^{- 6}$

$1.0 \times 10^{- 7}$ | 0.006

0.029 | 0.031

0.232 | 0.235

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Mingjun WANG, Yiming ZHOU, Jingsong HE, Liangliang BAI, Jihua YU. Statistical Characteristics of Laser Speckle Transmission through Mixed Particle Groups in Complex Random Environments[J]. Acta Photonica Sinica, 2025, 54(6): 0601002

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Paper Information

Category:

Received: Jan. 1, 2025

Accepted: Mar. 13, 2025

Published Online: Jul. 14, 2025

The Author Email: Mingjun WANG (wangmingjun@xaut.edu.cn)

DOI:10.3788/gzxb20255406.0601002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology