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  • Beitz, Toralf (1)
  • Dosche, Carsten (1)
  • Löhmannsröben, Hans-Gerd (1)
  • Raab, Corinna (1)
  • Raab, Volker (1)
  • Riebe, Daniel (1)
  • Unverzagt, Matthias (1)

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  • 2014 (1)

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  • Fabry-Perot etalon (1)
  • High-resolution spectrometer (1)
  • LIBS (1)
  • Laser-induced breakdown spectroscopy (1)
  • Raman spectroscopy (1)

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High-resolution spectrometer using combined dispersive and interferometric wavelength separation for raman and laser-induced Breakdown Spectroscopy (LIBS) (2014)
Riebe, Daniel ; Beitz, Toralf ; Dosche, Carsten ; Löhmannsröben, Hans-Gerd ; Raab, Volker ; Raab, Corinna ; Unverzagt, Matthias
In this paper the concept of a compact high-resolution spectrometer based on the combination of dispersive and interferometric elements is presented. Dispersive elements are used to spectrally resolve the light in one direction with coarse resolution (Delta lambda < 0.5 nm), while perpendicular to that direction an etalon provides high spectral resolution (Delta lambda < 50 pm). This concept for two-dimensional spectroscopy has been implemented for the wavelength range lambda = 350-650 nm. Appropriate algorithms for reconstructing spectra from the two-dimensional raw data and for wavelength calibration were established in an analysis software. Potential applications for this new spectrometer are Raman and laser-induced breakdown spectroscopy (LIBS). Resolutions down to 28 pm (routinely 54 pm) could be realized for these applications.
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