2 papers
astro-ph.IM2025
High-resolution, high-efficiency narrowband spectroscopy with an s-p-phased holographic grating in double pass
Casper Farret Jentink, Francesco Pepe, Christophe Lovis +3
High-resolution spectroscopy (R>50,000) in astronomy typically uses echelle-type spectrographs, which excel for exoplanet detection via radial velocity but compromise throughput fo…
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…