公开(公告)号：US11719576B2

公开(公告)日：2023-08-08

申请号：US17083165

申请日：2020-10-28

Applicant: California Institute of Technology

Inventor： William R Johnson ,  Matthew E Kenyon ,  Jordana Blacksberg ,  Carol A Raymond ,  Bethany L Ehlmann ,  Xiangwen Chen

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/18 ,  B64G1/66 ,  G02B23/06 ,  G01J5/12

CPC classification number: G01J3/2803 ,  B64G1/66 ,  G01J3/021 ,  G01J3/0286 ,  G01J3/18 ,  G01J5/12 ,  G02B23/06 ,  G01J2003/2813

Abstract: Methods and devices to implement mid-wave and long-wave infrared point spectrometers are disclosed. The described methods and devices involve bi-faceted gratings, high-operating-temperature barrier infrared and thermal detectors. The disclosed concept can be used to design flight spectrometers that cover broad solar reflectance plus thermal emission spectral ranges with a compact and low-cost instrument suitable for small spacecraft reconnaissance of asteroids, the Moon, and planetary satellites as well as mass-constrained landed missions.