Optical Design of the ARC Echelle Spectrometer

  • Daniel J. Schroeder
Conference paper
Part of the Santa Cruz Summer Workshops in Astronomy and Astrophysics book series (SANTA CRUZ)


The high-dispersion spectrometer for the ARC 3.5-m telescope combines an echelle with prism cross-dispersion in an in-plane arrangement. This spectrometer will be located at an f/10 Nasmyth focus with an off-axis paraboloidal collimator and an f/2.7 Schmidt camera with achromatic corrector and CCD detector. In this paper we describe the optical layout and expected image characteristics of this instrument, with special attention given to the cross-dispersion arrangement and the achromatic Schmidt corrector.


Entire Spectral Range Internal Transmittance Wedge Apex Camera Focal Length Order Separation 
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    D. Schroeder: Astronomical Optics, chap. 7 (Academic Press, New York, 1987).Google Scholar

Copyright information

© Springer-Verlag New York Inc. 1988

Authors and Affiliations

  • Daniel J. Schroeder

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