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Updated: Apr 18, 2026

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
Published on: December 22, 2015
High-throughput on-the-fly scanning ultraviolet-visible dual-sphere spectrometer
Slobodan Mitrovic1, Earl W Cornell2, Martin R Marcin1
1Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, USA.
Abstract:
We have developed an on-the-fly scanning spectrometer operating in the UV-visible and near-infrared that can simultaneously perform transmission and total reflectance measurements at the rate better than 1 sample per second. High throughput optical characterization is important for screening functional materials for a variety of new applications. We demonstrate the utility of the instrument for screening new light absorber materials by measuring the spectral absorbance, which is subsequently used for deriving band gap information through Tauc plot analysis.
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