Structural waveguide co-doped with Yb3+/Tm3+ for measurement of
chlorophyll concentration

Karol Czajkowski; Marcin Kochanowicz; Jacek Zmojda; Joanna Szczykowska; Dominik Dorosz

doi:10.1117/12.2075712

16 December 2014 Structural waveguide co-doped with Yb³⁺/Tm³⁺ for measurement of chlorophyll concentration

Karol Czajkowski, Marcin Kochanowicz, Jacek Zmojda, Joanna Szczykowska, Dominik Dorosz

Author Affiliations +

Proceedings Volume 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014; 92900N (2014) https://doi.org/10.1117/12.2075712
Event: Symposium on Photonics Applications in Astronomy, Communications, Industry and High-Energy Physics Experiments, 2014, Warsaw, Poland

Abstract

In the article a system for measuring the concentration of chlorophyll in methanol solution have been developed. Microstructural waveguide co- doped with Yb³⁺/Tm³⁺ ions was used as a sensing element. The waveguide consisted of thirty-seven glass capillaries arranged hexagonally was fabricated using the stacking and drawing method. Due to the excitation of the active core by laser diode (λ=980nm), an effective energy transfer between Yb³⁺ and Tm³⁺ ions occurs. As a result, two luminescence bands at 480 nm (¹G₄→³H₆) and 650 nm (1G4→³F₄) were obtained. Concentration of chlorophyll methanol solution in the range from 2.75 to 13.66 [mh/dm^s] was measured. Linear dependence of the decrease of luminescence intensity of thulium ions on its concentration was obtained. The sensitivity of the developed system was 0.005 [1/(mg/dm3)].

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Karol Czajkowski, Karol Czajkowski, Marcin Kochanowicz, Marcin Kochanowicz, Jacek Zmojda, Jacek Zmojda, Joanna Szczykowska, Joanna Szczykowska, Dominik Dorosz, Dominik Dorosz, "Structural waveguide co-doped with Yb³⁺/Tm³⁺ for measurement of chlorophyll concentration", Proc. SPIE 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014, 92900N (16 December 2014); doi: 10.1117/12.2075712; https://doi.org/10.1117/12.2075712

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