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Proceedings Paper

Structural waveguide co-doped with Yb3+/Tm3+ for measurement of chlorophyll concentration
Author(s): Karol Czajkowski; Marcin Kochanowicz; Jacek Zmojda; Joanna Szczykowska; Dominik Dorosz
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Paper 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 (1G43H6) and 650 nm (1G4→3F4) were obtained. Concentration of chlorophyll methanol solution in the range from 2.75 to 13.66 [mh/dms] 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)].

Paper Details

Date Published: 16 December 2014
PDF: 8 pages
Proc. SPIE 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014, 92900N (16 December 2014); doi: 10.1117/12.2075712
Show Author Affiliations
Karol Czajkowski, Białystok Univ. of Technology (Poland)
Marcin Kochanowicz, Białystok Univ. of Technology (Poland)
Jacek Zmojda, Białystok Univ. of Technology (Poland)
Joanna Szczykowska, Bialystok Univ. of Technology (Poland)
Dominik Dorosz, Białystok Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 9290:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014
Ryszard S. Romaniuk, Editor(s)

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