2 papers
astro-ph.IM2024
A Precision Cryogenic Positioning Stage for Detector Dithering and Flexure Compensation
Stephen A. Smee, Stephen C. Hope, Randolph P. Hammond +20
This paper presents the design and technical progress of a precision X-Y stage for detector dithering and flexure compensation. The stage is being developed for use in the Magellan…
astro-ph.IM2024
The Blue Multi Unit Spectroscopic Explorer (BlueMUSE) on the VLT: characterization of two VPHG prototypes based on dichromated gelatin and photopolymer recording materials
Alexandre Jeanneau, Andrea Bianco, Andrew Clawson +8
Volume-phase holographic gratings (VPHGs) are widely used in astronomical spectrographs due to their adaptability and high diffraction efficiency. Most VPHGs in operation use dichr…