Optical Design of an Imaging Spectrometer Utilizing an Acousto Optical Tunable Filter (AOTF) as a Disperser
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Designing an imaging spectrometer using and AOTF can be a difficult task since there is no software that can simulate the bulk diffraction that takes place in the AOTF material.
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This paper describes a disturbance analysis of the preliminary POINTS spacecraft and instrument design in order to determine whether and to what extent any isolation and/or added structural damping is necessary to meet the POINTS instrument requirements.
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A lumped model to represent the photodielectric effect is developed. An analog simulation for a sample in a microwave cavity with a static magnetic field is developed. A system to measure continuously the PDE is analyzed. A performance factor to compared PD detectors versus ac photoconductors is computed. The operating conditions are defined for the appropriate noise conditions. The detectivity of the detector is found to be limited by the semiconductor sample noise.