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Photonics
Special Issues
Emerging Trends in Spectral Analysis with Optical Sensors: Modern Approaches...
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Emerging Trends in Spectral Analysis with Optical Sensors: Modern Approaches and Applications

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Lasers, Light Sources and Sensors".

Deadline for manuscript submissions: 28 February 2025 | Viewed by 260

Special Issue Editors

Dr. Qichang An

E-Mail Website
Guest Editor
Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences, Changchun, China
Interests: optical path; adaptive optics; wavefront sensor
Dr. Hongchao Zhao

E-Mail Website
Guest Editor
School of Advanced Manufacturing, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen, Guangdong 518107, China
Interests: wave detectors; optics and laser; optical properties

Special Issue Information

Dear Colleagues,

Spectral sensing has significant and broad application prospects in the future. In terms of fine astronomy, photometric and spectroscopic surveys can effectively promote research on the evolution of the universe, exoplanets, and dark matter and energy. Regarding biosensing, through more integrated spectral sensing technology, the system’s volume, weight, power consumption, and—most importantly—cost can be further reduced. Concerning consumer electronics, the popularization of spectral measurements will also drive a new round of device innovation. The progress in the implementation system of spectral sensing is also enormous. The traditional optical filter and fiber optic spectral paths are designed for large-scale astronomical spectral measurement needs, and the increase in aperture and number of measurement units makes this task extremely challenging. Moreover, emerging instruments combining deep learning and spectral measurement have emerged in large numbers. Thus, to further promote the development of spectroscopy and optical sensing, this Special Issue intends to bring together contributions from leading experts in the field, fostering effective solutions for the future challenges in “Emerging Trends in Spectral Analysis with Optical Sensors”.

Dr. Qichang An
Dr. Hongchao Zhao
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fiber sensors
  • astrophotonics
  • optical instrumentation and measurements
  • integrated photonics
  • interferometers
  • diffraction neural network

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Published Papers (1 paper)

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Research

21 pages, 8025 KiB  
Article
Design and Characterization of a Portable Multiprobe High-Resolution System (PMHRS) for Enhanced Inversion of Water Remote Sensing Reflectance with Surface Glint Removal
by Shuangkui Liu, Ye Jiang, Kai Wang, Yachao Zhang, Zhe Wang, Xu Liu, Shiyu Yan and Xin Ye
Photonics 2024, 11(9), 837; https://doi.org/10.3390/photonics11090837 - 4 Sep 2024
Abstract
Surface glint significantly reduces the measurement accuracy of remote sensing reflectance of water, Rrs, making it difficult to effectively use field measurements for studying water optical properties, accurately retrieving water quality parameters, and validating satellite remote sensing products. To accurately assess [...] Read more.
Surface glint significantly reduces the measurement accuracy of remote sensing reflectance of water, Rrs, making it difficult to effectively use field measurements for studying water optical properties, accurately retrieving water quality parameters, and validating satellite remote sensing products. To accurately assess the effectiveness of various glint removal methods and enhance the accuracy of water reflectance measurements, a portable multiprobe high-resolution System (PMHRS) is designed. The system is composed of a spectrometer, fiber bundles, an irradiance probe, and three radiance probes. The reliability and measurement accuracy of the PMHRS are ensured through rigorous laboratory radiometric calibration and temperature correction. The comprehensive uncertainty of laboratory calibration ranges from 1.29% to 1.43% for irradiance calibration and from 1.47% to 1.59% for radiance calibration. Field measurement results show a strong correlation with both synchronous ASD data, and Sen2Cor-atmospherically corrected Sentinel-2B data (R2 = 0.949, RMSE = 0.013; R2 = 0.926, RMSE = 0.0105). The water-leaving radiance measurements obtained under different solar elevation angles using three methods (M99 method, polarization method, and SBA) demonstrate that the improved narrow field-of-view polarization probe effectively removes surface glint across various solar elevation angles (with overall better performance than the traditional M99 method). At a solar elevation angle of 69.7°, the MAPD and MAD between the measurements of this method and those of the SBA are 5.8% and 1.4 × 10−4, respectively. The results demonstrate that the PMHRS system outperforms traditional methods in sun glint removal, significantly enhancing the accuracy of water remote sensing reflectance measurements and improving the validation quality of satellite data. This work provides a crucial technical foundation for the development of high-resolution continuous observation platforms in complex aquatic environments. It holds significant implications for improving the accuracy of field-based water remote sensing reflectance measurements and for enhancing the quality of water ecological monitoring data and satellite validation data. Full article
(This article belongs to the Special Issue Emerging Trends in Spectral Analysis with Optical Sensors: Modern Approaches and Applications)
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