Frontiers in ultrafast optics and ultra-intense laser technology

Li, Ruxin; Cheng, Yi; Leng, Yuxin; Zhang, Zhinan; Yao, Jinping; Zeng, Bin; Liu, Guihua; Xu, Zhizhan; 徐至展,

doi:10.1360/n112016-00125

Cited by 4 publications

(1 citation statement)

References 63 publications

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“…Long-term, large spatial-scale aquatic environmental monitoring plays an important role in human understanding and comprehension of the oceans [9]. In order to realize global water ecological monitoring, it is extremely necessary to develop high-sensitivity, high-precision, stable, and reliable field sensors.…”

Section: Introductionmentioning

confidence: 99%

Optical Design and Stray Light Analysis of Underwater Spectral Radiometer

Zhang,

Wang,

Yue

et al. 2024

Applied Sciences

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Underwater spectral detection plays an important role in the study of the underwater environment, ecology, oceanography, and environmental monitoring. A kind of underwater spectral radiometer that can observe the distribution of underwater spectral radiation bidirectionally has been developed. The flat-field concave holographic grating is used as the only optical component, the optical design parameters are optimized, and the system is miniaturized. The mechanism of stray light generation in the spectrometer is studied, and a method of suppressing stray light is proposed and simulated. The level of stray light in the system is suppressed to the order of 10−4, the signal-to-noise ratio of the system is improved, and the ability to detect weak light is enhanced. The wavelength calibration experiment was completed, and the experimental results show that the wavelength resolution of the underwater spectral radiometer is better than 3 nm. Finally, the quantitative relationship between spectral irradiance and digital output is obtained through radiation in the calibration of the system.

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Section: Introductionmentioning

confidence: 99%