Intensity Measurement of Backscattered Light from Underwater Targets Using Femtosecond Pulse Laser

In this paper, we experimentally perform the measurement of the backscattered light intensity from the underwater targets with different size. We develop a simple system, which can easily measure the intensity of the backscattered light, after the laser is scattered at the target underwater. We find...

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Bibliographic Details
Published inMarine geodesy Vol. 42; no. 3; pp. 316 - 326
Main Authors Zhai, Xiaoyu, Meng, Zhaopeng, Wei, Jianguo, Zhang, Kai, Zhang, Haoyun, Wang, Zhiyang, Qian, Zhiwen
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 04.05.2019
Taylor & Francis Ltd
Subjects
Arbitrary target
backscattered light
Backscattering
Calibration
Detection
femtosecond pulse laser
Femtosecond pulsed lasers
intensity measurement
Lasers
Light intensity
Luminous intensity
Measurement
Particle size
Stability
Underwater
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Summary:In this paper, we experimentally perform the measurement of the backscattered light intensity from the underwater targets with different size. We develop a simple system, which can easily measure the intensity of the backscattered light, after the laser is scattered at the target underwater. We find that, the signal period is related to the particle size, and the stability of the intensity (standard deviation) varies linearly with changing the particle size. After the calibration, our system can be used to precisely determine the particle size of arbitrary targets. Our method could open a new opportunity for the future underwater detection using femtosecond pulse laser.
ISSN:0149-0419
1521-060X
DOI:10.1080/01490419.2019.1604455