Detection on weak fluorescence by laser-induced for natural dyes of cultural relics

Shukai Li; Wenjing Zhou; An Gu; Yong Lei

doi:10.1117/12.2686656

27 November 2023 Detection on weak fluorescence by laser-induced for natural dyes of cultural relics

Shukai Li, Wenjing Zhou, An Gu, Yong Lei

Proceedings Volume 12771, Advanced Sensor Systems and Applications XIII; 127711B (2023) https://doi.org/10.1117/12.2686656
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

Fluorescence spectroscopy has been successfully applied to the identification of colorants in oil paintings and murals due to the advantage of non-destructive detection, but the traditional equipment uses xenon lamp as the excitation light source, which is energy inefficient in the process of using, and the monochromatic light output power is weak and unstable. This paper proposes the use of ultra-continuous spectrum broad-band tunable laser with fiber optic sensors to achieve effective detection of weak fluorescence signals of silk dyes, compared with the traditional 3D-fluorescence equipment, single-wavelength excitation light output power is greatly increased, higher monochromaticity and energy density to achieve better spatial resolution and faster detection efficiency, while adding fiber optic sensors can be done to achieve the surface of the painted artifacts in situ non-destructive detection. The proposed method can detect more weak fluorescence information under the comparison results of multiple dyed silk samples with different fluorescence emission effects. Acknowledgement: This project is funded by National Key R&D Program of China No.2020YFE0204600.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Shukai Li, Wenjing Zhou, An Gu, and Yong Lei "Detection on weak fluorescence by laser-induced for natural dyes of cultural relics", Proc. SPIE 12771, Advanced Sensor Systems and Applications XIII, 127711B (27 November 2023); https://doi.org/10.1117/12.2686656

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