Portable shifted excitation Raman difference spectroscopy for agri-photonics: from on-site precision agriculture to smart farming

Martin Maiwald; Kay Sowoidnich; André Müller; Bernd Sumpf

doi:10.1117/12.2692266

12 March 2024 Portable shifted excitation Raman difference spectroscopy for agri-photonics: from on-site precision agriculture to smart farming

Martin Maiwald, Kay Sowoidnich, André Müller, Bernd Sumpf

Author Affiliations +

Proceedings Volume 12879, Photonic Technologies in Plant and Agricultural Science; 1287907 (2024) https://doi.org/10.1117/12.2692266
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

Portable Shifted Excitation Raman Difference Spectroscopy (SERDS) using two excitation wavelengths around 785 nm is applied for selected applications in the field of agri-photonics. In the presence of daylight and laser-induced fluorescence, SERDS effectively separates Raman signals of green apple leaves and soil substances with more than 10-fold improved signal-to-background-noise ratios. Major ingredients of bovine milk are clearly detected and identified. A quantitative determination of the fat content in milk is performed and shows a limit-of-detection of 0.1 g / 100 mL. These results show a great potential of portable SERDS for real-world applications, e.g., for precision agriculture and food monitoring.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Martin Maiwald, Kay Sowoidnich, André Müller, and Bernd Sumpf "Portable shifted excitation Raman difference spectroscopy for agri-photonics: from on-site precision agriculture to smart farming", Proc. SPIE 12879, Photonic Technologies in Plant and Agricultural Science, 1287907 (12 March 2024); https://doi.org/10.1117/12.2692266

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