ATLAS: a Cassegrain spectrograph based on volume phase holographic gratings

J. Gordon Robertson; Keith Taylor; Ivan K. Baldry; Peter R. Gillingham; Samuel Charles Barden

doi:10.1117/12.395472

27 March 2000 ATLAS: a Cassegrain spectrograph based on volume phase holographic gratings

J. Gordon Robertson, Keith Taylor, Ivan K. Baldry, Peter R. Gillingham, Samuel Charles Barden

Proceedings Volume 4008, Optical and IR Telescope Instrumentation and Detectors; (2000) https://doi.org/10.1117/12.395472
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

We are proposing a new spectrograph (ATLAS) which would revolutionize intermediate-dispersion observations at the AAT. Based on the new technology of volume phase holographic gratings, and using transmission optics, ATLAS offers high throughput and a wide field. It will be ideally situated to extensive surveys of faint objects. It has been designed with a collimated beam diameter of 150 mm, giving resolution (lambda) /(delta) (lambda) up to nearly 10,000 with a 1.5 arcsecond slit and good efficiency. It will be a dual-beam instrument, to maximize observing speed and allow optimized optical coatings to be used. The project is working towards its concept design review which will occur during 2000.

Citation Download Citation

J. Gordon Robertson, Keith Taylor, Ivan K. Baldry, Peter R. Gillingham, and Samuel Charles Barden "ATLAS: a Cassegrain spectrograph based on volume phase holographic gratings", Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (27 March 2000); https://doi.org/10.1117/12.395472

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