Optical Design of a Large Panoramic Integral Field Spectrograph's Front-End Optics

Large panoramic integral field spectrographs, such as MUSE or BlueMUSE, consist of multiple identical units, each comprising of an image slicer and a spectrograph. The front-end optics play a crucial role in transporting and distributing the telescope image plane into these units. Their functions include adapting the focal ratio, field derotation, spectral anamorphosis, and the splitting and relay optics required for each unit. It is important to consider mechanical constraints in order to accommodate the localization and 3D arrangement of the units. Additionally, the alignments and sensitivity to temperature variations must be evaluated.

During this internship, the student will explore various designs, starting from BlueMUSE with its 16 units up to WST with 144 units. Initially, the feasibility, performance, and cost impact of different solutions will be assessed. Subsequently, the selected baseline solution will undergo detailed optical design.


Supervisor: Johan Kosmalski