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Diode-array UV solar spectroradiometer implementing a digital micromirror device



Ari D. Feldman, Tim Burnitt, Geiland Porrovecchio, Marek Smid, Luca Egli, Julian Gr¿bner, Katherine M. Nield


The solar ultraviolet spectrum captured by commercially available diode-array spectroradiometers is dominated by stray light from longer wavelengths with higher intensity. The implementation of a digital micromirror device in an array spectroradiometer has the potential to enable the precise selection of desired wavelengths as well as the ability to reduce spectral intensity of some wavelengths via selective mirror modulation, both reducing long wavelength stray light. A prototype consisting of off-the-shelf components has been assembled to verify the validity of the base concept and initial measurements have been performed to confirm the throughput and image qualities such as spectral resolution and astigmatism.


spectrometer, ultraviolet, digital micromirror device, CCD, prototype


Feldman, A. , Burnitt, T. , Porrovecchio, G. , Smid, M. , Egli, L. , Gr¿bner, J. and Nield, K. (2014), Diode-array UV solar spectroradiometer implementing a digital micromirror device, Metrologia, [online], (Accessed June 25, 2024)


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Created November 20, 2014, Updated November 10, 2018