Research
Projects
FPA spectrograph
As the result of the availability of high sensitive Focal Plane Arrays (FPA) in the Mid-Infrared (MIR) spectral range, the concept of a dispersive Echelle spectrograph becomes feasible now. It supplements standard FTIR spectrometers especially in view of the detection of transient signals (e.g. protein folding kinetics) in snapshot mode.
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Atmospheric water vapor determination
The use of GPS data for the solution of geodetic problems requires a high accuracy of measurement in the sub-centimeter range, which is achievable only by exact correction of the atmospheric interferences. Here, the crucial factor is the variation of the content of water vapor in the troposphere. A determination of this content is feasible by NIR absorption measurements utilizing the sun as background radiator.
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Enhancements in HR-CS AAS
The High Resolution Continuum Source Atomic Absorption Spectrometry (HR-CS AAS) has been developed at ISAS Berlin to overcome fundamental limitations of the well established AAS technique. As a result, two novel instruments (contrAA 300, contrAA 700) have already been introduced into the market.
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OES applications
OES (Optical Emission Spectrometry) techniques require a sophisticated spectrometer design, characterized by totally controlled operational mode, simultaneous signal acquisition, maximum sensitivity from VUV to NIR, high spectral resolution, and high optical throughput. By now, a considerable number of CCD spectrographs have been designed at the ISAS and partially commercialized for a wide scale of scientific and routine OES applications.
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