Development of laser fluorometer system for CDOM measurements

Chen, Peng; Zhihua, 毛志华 Mao; Bangyi, 陶邦一 Tao; Tianyu, 王天愚 Wang

doi:10.3788/irla201847.0903004

Cited by 2 publications

(1 citation statement)

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“…In recent years, with the development of semiconductor lasers, researchers have carried out a series of works using blue-violet lasers in the qualitative and quantitative analysis of ship oil spills, CDOM, and chlorophyll. Among them, 405 nm violet semiconductor lasers are more technically mature and are often chosen as excitation sources [9]. In this paper, we investigate the intrinsic optical properties of 405 nm and 532 nm lasers in seawater containing chlorophyll and simulate the transmission characteristics of the laser in class 1 seawater and some class 2 seawater.…”

Section: Introductionmentioning

confidence: 99%

Study on the effect of chlorophyll content in seawater on light transmission characteristics

Sun¹,

Xing²,

Meng³

et al. 2023

International Conference on Optoelectronic Materials and Devices (ICOMD 2022)

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The chlorophyll content in seawater seriously affects the inherent optical properties of seawater and the light transmission characteristics. This paper investigates the relationship between inherent optical properties and chlorophyll concentration in seawater applicable to class 1 seawater and part of class 2 seawater. The transmission of 405 nm violet and 532 nm green laser beams in seawater with a chlorophyll concentration range of 0-12 mg/m 3 was simulated using the Monte Carlo method. The light field distribution, the on-axis laser energy, and the variation of the laser spot size with the transmission distance were obtained. The simulation results show that the transmission characteristics of 405 nm light are better for near-shore seawater with high chlorophyll concentration, while the transmission distance is longer for 532 nm light in the clearer deep-sea region. The study of the effect of chlorophyll content in seawater on light transmission characteristics can provide theoretical guidance for marine laser communication, lidar and laser underwater imaging, and other marine equipment.

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Section: Introductionmentioning

confidence: 99%