dorsal/arxiv
View SchemaAn original image slicer designed for Integral Field Spectroscopy with NIRSpec/JSWT
| Authors | Sébastien Vivès, Eric Prieto |
|---|---|
| Categories | |
| ArXiv ID | physics/0512002 |
| URL | https://arxiv.org/abs/physics/0512002 |
Abstract
Integral Field Spectroscopy (IFS) provides a spectrum simultaneously for each spatial sample of an extended, two-dimensional field. It consists of an Integral Field Unit (IFU) which slices and re-arranges the initial field along the entrance slit of a spectrograph. This article presents 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 that means that angles between incident and reflected beams on each elements are minimized. The fan-shaped image slicer improves image quality in terms of wavefront error by a factor 2 comparing with classical image slicer and, furthermore it guaranties a negligible level of differential aberration in the field. As an exemple, we are presenting the design LAM used for its proposal at the NIRSPEC/IFU invitation of tender.
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"abstract": "Integral Field Spectroscopy (IFS) provides a spectrum simultaneously for each\nspatial sample of an extended, two-dimensional field. It consists of an\nIntegral Field Unit (IFU) which slices and re-arranges the initial field along\nthe entrance slit of a spectrograph. This article presents an original design\nof IFU based on the advanced image slicer concept. To reduce optical\naberrations, pupil and slit mirrors are disposed in a fan-shaped configuration\nthat means that angles between incident and reflected beams on each elements\nare minimized. The fan-shaped image slicer improves image quality in terms of\nwavefront error by a factor 2 comparing with classical image slicer and,\nfurthermore it guaranties a negligible level of differential aberration in the\nfield. As an exemple, we are presenting the design LAM used for its proposal at\nthe NIRSPEC/IFU invitation of tender.",
"arxiv_id": "physics/0512002",
"authors": [
"S\u00e9bastien Viv\u00e8s",
"Eric Prieto"
],
"categories": [
"physics.optics",
"astro-ph"
],
"title": "An original image slicer designed for Integral Field Spectroscopy with NIRSpec/JSWT",
"url": "https://arxiv.org/abs/physics/0512002"
},
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