9 August 2016 Optical design of a multi-resolution, single-shot spectrograph
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Multi-object or integral field spectrographs today are recognized techniques for achieving simultaneous spectroscopic observations of different or extended sky objects with a high multiplex factor. In this communication is described a complementary approach for realizing similar measurements under different spectral resolutions at the same time. Herein is explained the basic principle of this new type of spectrometer, that is based on the utilization of an optical pupil slicer. An optical design inspired from an already studied instrument is then presented and commented for the sake of illustration. Technical issues about the pupil slicer and diffractive components are also discussed. We finally conclude on the potential advantages and drawbacks of the proposed system.
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François Hénault, François Hénault, Florence Laurent, Florence Laurent, "Optical design of a multi-resolution, single-shot spectrograph", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99083S (9 August 2016); doi: 10.1117/12.2231280; https://doi.org/10.1117/12.2231280

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