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.
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.
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.
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.