Tarcea, Nicolae ; Harz, Michaela ; Rösch, Petra ; Frosch, Torsten ; Schmitt, Michael ; Thiele, Hans ; Hochleitner, R. ; Popp, Jürgen (2007)
UV Raman spectroscopy - A technique for biological and mineralogical in situ planetary studies.
In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 68 (4)
doi: 10.1016/j.saa.2007.06.051
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report on the great advantages of using deep UV Raman system for in situ planetary applications. Among them are to be mentioned: (I) higher scattering efficiency compared to VIS–IR Raman excitation wavelengths, (II) electronic resonance effects which increase the intrinsically weak Raman signal thus improving the S/N ratio of the detected Raman signals and (III) spectral separation of Raman and fluorescence signals.
All these advantages are making UV Raman a valuable technique for in situ planetary applications. Mineral as well as biological samples were analyzed using Raman deep UV excitation and the results are presented. For the mineral samples a comparison with excitation in the NIR–VIS spectral regions is made. The impact of fluorescence on Raman data acquisition at different laser excitation wavelengths is assessed. Making use of the resonance effects, spectra of microorganisms were recorded with a high S/N ratio, allowing afterwards a very precise identification and classification (to the strain level) of the measured samples.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Tarcea, Nicolae ; Harz, Michaela ; Rösch, Petra ; Frosch, Torsten ; Schmitt, Michael ; Thiele, Hans ; Hochleitner, R. ; Popp, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | UV Raman spectroscopy - A technique for biological and mineralogical in situ planetary studies |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Dezember 2007 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Jahrgang/Volume einer Zeitschrift: | 68 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1016/j.saa.2007.06.051 |
| Kurzbeschreibung (Abstract): | We report on the great advantages of using deep UV Raman system for in situ planetary applications. Among them are to be mentioned: (I) higher scattering efficiency compared to VIS–IR Raman excitation wavelengths, (II) electronic resonance effects which increase the intrinsically weak Raman signal thus improving the S/N ratio of the detected Raman signals and (III) spectral separation of Raman and fluorescence signals. All these advantages are making UV Raman a valuable technique for in situ planetary applications. Mineral as well as biological samples were analyzed using Raman deep UV excitation and the results are presented. For the mineral samples a comparison with excitation in the NIR–VIS spectral regions is made. The impact of fluorescence on Raman data acquisition at different laser excitation wavelengths is assessed. Making use of the resonance effects, spectra of microorganisms were recorded with a high S/N ratio, allowing afterwards a very precise identification and classification (to the strain level) of the measured samples. |
| Freie Schlagworte: | UV Raman Spectroscopy, in situ, Biological Sensing, Mineralogical Sensing, Planetary Science Analysis |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Biophotonik-Medizintechnik |
| Hinterlegungsdatum: | 19 Jan 2024 10:39 |
| Letzte Änderung: | 19 Jan 2024 18:03 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum