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Original Articles

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

, , , , , & show all
Pages 316-326 | Received 20 Sep 2018, Accepted 02 Apr 2019, Published online: 08 May 2019
 

Abstract

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.

Additional information

Funding

This work is supported by the National Natural Science Foundation of China [61505140].

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