27 March 2000 ATLAS: a Cassegrain spectrograph based on volume phase holographic gratings
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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.
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J. Gordon Robertson, J. Gordon Robertson, Keith Taylor, Keith Taylor, Ivan K. Baldry, Ivan K. Baldry, Peter R. Gillingham, Peter R. Gillingham, Samuel Charles Barden, 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); doi: 10.1117/12.395472; https://doi.org/10.1117/12.395472
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