Fabien Grisé

Fabien Grisé is an Associate Research Professor at the Department of Astronomy and Astrophysics, Pennsylvania State University. His work focuses on developing advanced diffraction gratings and instrumentation for space-based X-ray and ultraviolet spectroscopy missions. He leads efforts in fabricating high-performance gratings using electron-beam lithography and ion-beam etching, with applications in NASA missions like the Rockets for Extended-source X-ray Spectroscopy (tREXS) and the MANTIS CubeSat. Grisé's research addresses challenges in curved grating design, residual stress mitigation, and spectral resolution enhancement.

Key projects include the ESCAPE Small Explorer mission for exoplanet host star irradiance studies and the Habitable Worlds Observatory. His technical contributions span materials science (e.g., platinum thin films for reflective coatings), optomechanical systems integration, and calibration methodologies for suborbital payloads. Grisé collaborates on analyzing data from first-flight missions and advancing EUV/UV observational capabilities to study accreting compact objects, stellar activity, and exoplanetary systems.

Recent work explores photonic Landau levels in silicon and optimizing anisotropically-etched gratings for extreme UV wavelengths. His research bridges nanofabrication techniques with astrophysical instrumentation needs, emphasizing precision manufacturing for next-generation astronomical tools.