Kröckel, Lars ; Frosch, Torsten ; Schmidt, Markus A. (2015)
Multiscale spectroscopy using a monolithic liquid core waveguide with laterally attached fiber ports.
In: Analytica Chimica Acta, 875
doi: 10.1016/j.aca.2015.03.028
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In conventional absorption spectrometers, the range of accessible concentrations of analytes in aqueous solution is significantly limited by the dynamic range of the measurement system. Here we introduce the concept of multiscale spectroscopy allowing extending that range by orders of magnitude within one single device. The concept relies on using multiple light-sample interaction lengths, boosting the accessible concentration range by a particular extension factor. We experimentally implement our concept by a liquid core waveguide having multiple fiber ports side-wise attached to the waveguide, thus probing the light propagating inside the core at predefined distances from the input. This configuration provides three orders of magnitude of interaction length in one device. To verify the concept we exemplarily determine the concentrations of nitrate and of Rhodamine 6G in water, showing one hundred times improved measurement capabilities. The multiscale spectrometer uses the entire sample volume and allows the simultaneous measurement of fluorescence and attenuance. Due to its integrated design and the extended measurements capabilities, we anticipate application of our device in many application-relevant areas such as water quality analysis or environmental science.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Kröckel, Lars ; Frosch, Torsten ; Schmidt, Markus A. |
| Art des Eintrags: | Bibliographie |
| Titel: | Multiscale spectroscopy using a monolithic liquid core waveguide with laterally attached fiber ports |
| Sprache: | Englisch |
| Publikationsjahr: | 22 Mai 2015 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Analytica Chimica Acta |
| Jahrgang/Volume einer Zeitschrift: | 875 |
| DOI: | 10.1016/j.aca.2015.03.028 |
| Kurzbeschreibung (Abstract): | In conventional absorption spectrometers, the range of accessible concentrations of analytes in aqueous solution is significantly limited by the dynamic range of the measurement system. Here we introduce the concept of multiscale spectroscopy allowing extending that range by orders of magnitude within one single device. The concept relies on using multiple light-sample interaction lengths, boosting the accessible concentration range by a particular extension factor. We experimentally implement our concept by a liquid core waveguide having multiple fiber ports side-wise attached to the waveguide, thus probing the light propagating inside the core at predefined distances from the input. This configuration provides three orders of magnitude of interaction length in one device. To verify the concept we exemplarily determine the concentrations of nitrate and of Rhodamine 6G in water, showing one hundred times improved measurement capabilities. The multiscale spectrometer uses the entire sample volume and allows the simultaneous measurement of fluorescence and attenuance. Due to its integrated design and the extended measurements capabilities, we anticipate application of our device in many application-relevant areas such as water quality analysis or environmental science. |
| Freie Schlagworte: | UV, Absorption, FERS, Calculation, Biomedical Spectroscopy, Pharmaceutical Spectroscopy |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Biophotonik-Medizintechnik |
| Hinterlegungsdatum: | 19 Jan 2024 10:22 |
| Letzte Änderung: | 19 Jan 2024 17:21 |
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