Original image slicer designed for integral field spectroscopy with the near-infrared spectrograph for the James Webb Space Telescope
Original image slicer designed for integral field spectroscopy with the near-infrared spectrograph for the James Webb Space Telescope
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DOI：
10.1117/1.2355515
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发表时间：
2006-09-01
影响因子：
1.3
通讯作者：
Prieto, E.
中科院分区：
文献类型：
--
作者：
Vives, S.;Prieto, E.
Integral field spectroscopy (IFS) provides a spectrum simultaneously for each spatial sample of an extended 2-D field. It consists of an integral field unit (IFU), which slices and rearranges the initial field along the entrance slit of a spectrograph. We present an original design of IFU based on the advanced image slicer concept. To reduce optical aberrations, pupil and slit mirrors are disposed in a fan-shaped configuration, which means that angles between incident and reflected beams on each element are minimized. The fan-shaped image slicer improves image quality in terms of wavefront error by a factor of 2 compared with a classical image slicer, and furthermore, it guaranties a negligible level of differential aberration in the field. As an example, we present the design LAM used for its proposal at the near-infrared spectrograph (NIRSpec/IFU) invitation of tender for the James Webb Space Telescope (JWST). (c) 2006 Society of Photo-Optical Instrumentation Engineers.
