Physics – Optics
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apopt..43.4633b&link_type=abstract
Applied Optics IP, vol. 43, Issue 24, pp.4633-4642
Physics
Optics
Scientific paper
We present an imaging spectrometer developed for narrowband imaging at 1035 Å with high (~1-arc sec) spatial resolution over a modest field of view (~5 arc min). The instrument is based on a conventional Gregorian telescope with aberration-corrected holographic rulings on the secondary optic. These aberration-correcting rulings enable stigmatic imaging in diffracted light with a minimum number of optical elements, thereby maintaining a high system efficiency. The capabilities of this instrument allow us to map the distribution of UV-emitting material in the hot (~300,000 K) plasma from shocks in supernova remnants. Although this design is optimized for imaging near 1035 Å, the basic concept can be applied to provide narrowband imaging or long-slit imaging spectroscopy at any wavelength. In addition, a larger field of view is possible with a corresponding loss in spatial resolution.
Beasley Matthew
Boone Catherine
Cunningham Nathaniel
Green Jeremy
Wilkinson Erik
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