Design of compact integral field spectrometers for mid- to high-resolving powers using immersed gratings

Martyn Wells; Christopher J. Evans; Peter R. Hastings

doi:10.1117/12.787912

9 July 2008 Design of compact integral field spectrometers for mid- to high-resolving powers using immersed gratings

Martyn Wells, Christopher J. Evans, Peter R. Hastings

Proceedings Volume 7014, Ground-based and Airborne Instrumentation for Astronomy II; 701422 (2008) https://doi.org/10.1117/12.787912
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

We present designs for compact near-IR spectrometers with mid to high resolving powers. They use an innovative combination of integral-field units and immersed gratings, both with and without cross-dispersion. The advent of ELTs with scientific requirements for multi-channel instruments (e.g. EAGLE) with high resolving powers has led to designs for spectrometers which are made more compact by using immersed gratings and are capable of high spectral resolving power by including cross dispersion and an arrangement of the IFU output that provides the requisite short slit.

Citation Download Citation

Martyn Wells, Christopher J. Evans, and Peter R. Hastings "Design of compact integral field spectrometers for mid- to high-resolving powers using immersed gratings", Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 701422 (9 July 2008); https://doi.org/10.1117/12.787912

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