Design and proto-typing of integral field units for the ELT-PCS test bench spectrograph

Matthias Tecza; Robert M. Barnsley; Álvaro Menduiña-Fernández; Takashi Sukegawa

doi:10.1117/12.2313286

10 July 2018 Design and proto-typing of integral field units for the ELT-PCS test bench spectrograph

Matthias Tecza, Robert M. Barnsley, Álvaro Menduiña-Fernández, Takashi Sukegawa

Proceedings Volume 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III; 107062I (2018) https://doi.org/10.1117/12.2313286
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

One of the highest scientific priorities for ESO's Extremely Large Telescope is imaging and characterising Earth-like planets around Sun-like stars, requiring contrast ratios of 10^-9 only achievable through a combination of extreme adaptive optics, advanced coronagraphy, and data post-processing. The dedicated planetary instrument ELT-PCS uses an integral field spectrograph to simultaneously obtain a homogeneous set of spectra over a two-dimensional field on the sky. Here we present the design and early results from prototyping activities for a lenslet-array and an image-slicer based IFU that are being studied in the context of the ELT-PCS R and D. In particular for the image slicer we investigate classical polishing techniques, like used for SINFONI and SWIFT, and diamond machining.

Conference Presentation

Citation Download Citation

Matthias Tecza, Robert M. Barnsley, Álvaro Menduiña-Fernández, and Takashi Sukegawa "Design and proto-typing of integral field units for the ELT-PCS test bench spectrograph", Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 107062I (10 July 2018); https://doi.org/10.1117/12.2313286

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