The optical design of the X-shooter for the VLT

P. Spanò; B. Delabre; A. Norup Sørensen; F. Rigal; A. de Ugarte Postigo; R. Mazzoleni; G. Sacco; P. Conconi; V. De Caprio; N. Michaelsen

doi:10.1117/12.671162

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30 June 2006 The optical design of the X-shooter for the VLT

P. Spanò, B. Delabre, A. Norup Sørensen, F. Rigal, A. de Ugarte Postigo, R. Mazzoleni, G. Sacco, P. Conconi, V. De Caprio, N. Michaelsen

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Proceedings Volume 6269, Ground-based and Airborne Instrumentation for Astronomy; 62692X (2006) https://doi.org/10.1117/12.671162
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

The overall optical design of X-Shooter, the second generation, wide band, intermediate resolution, high efficiency, three-arms spectrograph for the VLT, is presented. We focus on the optical design of the three optimized arms, covering UVB (300-550 nm), VIS (550-1000 nm), and NIR (1000-2300 nm) wavelength ranges, including spectrographs and pre-slit optics. All spectrographs share the same original "4C" concept (Collimator Correction of Camera Chromatism). We describe also the auxiliary optics, such as dichroics, acquisition and guiding unit. Performances analysis are summarized.

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P. Spanò, B. Delabre, A. Norup Sørensen, F. Rigal, A. de Ugarte Postigo, R. Mazzoleni, G. Sacco, P. Conconi, V. De Caprio, and N. Michaelsen "The optical design of the X-shooter for the VLT", Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62692X (30 June 2006); https://doi.org/10.1117/12.671162

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