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Mobile Raman sensors for on-site measurements to address agri-photonic and life science applications

K. Sowoidnich, M. Maiwald, T. Filler, L. Wittenbecher, B. Sumpf

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Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2023), Munich, Germany, Jun. 26-30, ISBN: 979-8-3503-4599-5, ch-13-3 (2023).


Raman spectroscopy is a well-established non-invasive and label-free optical technique for molecule-specific analysis in various application fields. However, disturbing contributions like laser-induced fluorescence or ambient lights can easily mask the weak Raman signals. Shifted excitation Raman difference spectroscopy (SERDS) using two laser excitation wavelengths within a narrow spectral range can effectively address this issue. Here, the Raman signals follow the change in the excitation wavelength while the background signals remain unchanged.

Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany

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