Development of a wide‑band imaging FT‑IR using wavefront‑division interferometry for future planetary and space‑exploration payloads
We developed a compact imaging Fourier transform infrared (FT-IR) spectrometer based on wavefront-division interferometry for planetary exploration and small-satellite missions. The instrument covers 4–20 μm with a wavenumber resolution of 3.8 cm−1 and a spatial resolution of 34 μm. The optical system uses two Zernike...