Design, prototypes, and performances of an image slicer system for integral field spectroscopy

Bonneville, Christophe; Prieto, Éric; Ferruit, Pierre; Hénault, François; Lemonnier, J. P.; Prost, Florence; Bacon, Roland; Fèvre, O. Le

doi:10.1117/12.457356

Cited by 13 publications

(12 citation statements)

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“…In addition to the usual scattering contributions, those included diffraction cross-talk calculations that however only considered the central slice and excluded cross-talk due to scattering. The same comment can be said of published analyses for the NIRSpec instrument of the James Webb Space Telescope, which also did not consider ghost slitlets and did not quantify the impact of a baffle on the system 6 . Some results have also been reported for the IRIS slicer-based spectrograph, intended for the thirty-meter telescope, but excluded diffraction effects 7 .…”

Section: Introductionmentioning

confidence: 84%

“…The same comment can be said of published analyses for the NIRSpec instrument of the James Webb Space Telescope, which also did not consider ghost slitlets and did not quantify the impact of a baffle on the system. 6 Some results have also been reported for the IRIS slicer-based spectrograph, intended for the thirty-meter telescope, but excluded diffraction effects. 7 In all cases, details on how to obtain such values were not discussed.…”

Section: Stray Light Analysis Of Image Slicersmentioning

confidence: 99%

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Stray light analysis of diamond-turned image slicers

2023

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.We describe the process through which stray light analysis should be performed in optical systems involving image slicers. We detail how scattering models should be used depending on how the image slicer assembly will be fabricated. Our work describes how to determine all ray paths, compute cross-talk on the pupil mirrors due to scattering, quantify the ghost images’ intensity, and determine baffle positions. In the example given, an ABg model is applied to all mirror arrays separately, before considering their contributions altogether. We also consider diffraction due to the image slicer’s narrow slice apertures, which contribute to unwanted light in the system by causing cross-talk on the pupil mirrors. Using Fourier optics, this quantity is computed and compared with cross-talk caused by scattering. Our work represents a useful asset for optical engineers who work on image slicer-based systems and want to analyze stray light, by providing a clear and exhaustive procedure to follow to obtain accurate estimates.

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Section: Introductionmentioning

confidence: 84%

Section: Stray Light Analysis Of Image Slicersmentioning

confidence: 99%

Stray light analysis of diamond-turned image slicers

2023

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“…The image slicers minimize optical losses and improve the efficiency and compactness of the system. 2 Figure 1 illustrates the image slicing concept. The field of view is divided into N (for SNAP, N = 60) strips on a slicing mirror.…”

Section: D Spectrograph and Image Slicersmentioning

confidence: 99%

An image slicer spectrograph for the SNAP mission

Ealet¹

2008

SPIE Newsroom

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“…Each of N slices re-images the telescope pupil, so there are N images in the pupil plane. Because of a tilt adapted to each individual slice, the N images are arranged along a line and form a pseudo-slit 3 . Such an optical concept minimizes optical losses and improve the efficiency and compactness of the system.…”

Section: Introductionmentioning

confidence: 99%

First results for the spectro-photometry calibration of the SNAP spectrograph demonstrator in the visible range

Aumeunier

Ealet

Prieto

et al. 2008

Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter

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International audienceA visible and infrared spectrograph based on integral field method (IFU) using the slicer technology is proposed for the SNAP(SuperNovae/Acceleration Probe) mission. The spectrograph is a key element to control supernovae Type Ia measurements and to calibrate standards stars at the per cent level. The current concept has a low spectral resolution (about 100) and is under-sampled in the infrared arm. A demonstrator has been manufactured and is used to validate the performances. The calibration procedure has been developed using a full simulation of the instrument at the pixel level and tested with the demonstrator. We present the first experimental results performed in the visible range and we compare them with the results predicted by the simulation

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Design, prototypes, and performances of an image slicer system for integral field spectroscopy

Cited by 13 publications

References 0 publications

Stray light analysis of diamond-turned image slicers

Stray light analysis of diamond-turned image slicers

An image slicer spectrograph for the SNAP mission

First results for the spectro-photometry calibration of the SNAP spectrograph demonstrator in the visible range

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