SWIFTS Spectrometry for SWIR Astronomical Applications: Development of a monobloc spectrometer for versatile deployment in telescopes and airborne instruments

This paper focuses on the development of on-chip integrated spectrometry techniques with potential applications in the field of astronomy. The main objectives of this project are to achieve high-resolution spectrometry and improve the sensitivity of SWIFTS (Standing Wave Fourier Transform Spectrometer). The primary applications will be high-resolution spectrometry for precise measurement of atmospheric compositions of detected exoplanets well as other celestial bodies, such as the detection and analysis of specific gases like carbon dioxide (CO2) and methane (CH4) that are linked to life. The proposed SWIFTS approach offers advantages of high spectral resolution, compact size, and robust design. The project targets adaptation for astronomical observations in the short-wave infrared (SWIR) range (1000-2500nm) by employing directional nano-emitters to improve spectral range and sensitivity. Specific objectives include optimizing antenna fabrication for high resolution and creating a robust, one-piece spectrometer suitable for outdoor and airborne astronomical applications.