公开(公告)号：US20240377304A1

公开(公告)日：2024-11-14

申请号：US18598372

申请日：2024-03-07

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Mooseok Jang ,  Gookho Song ,  Chunghyeong Lee ,  Dong Gu Lee

IPC: G01N15/0205 ,  G01N15/00

Abstract: Provided is an ultrasensitive spectrometer. The ultrasensitive spectrometer includes a scattering medium, a light-receiving sensor disposed at a rear end of the scattering medium, a storage unit storing previously predicted speckle pattern information according to wavelengths with respect to the scattering medium, and a signal processing unit configured to process a sensing signal generated by the light-receiving sensor. The scattering medium scatters incident analyzing light to form a random speckle pattern, and the light-receiving sensor senses the speckle pattern formed by the scattering medium. The signal processing unit restores spectrum information of the analyzing light from sensing information sensed of the speckle pattern formed by the scattering medium.

公开(公告)号：US20240280406A1

公开(公告)日：2024-08-22

申请号：US18443488

申请日：2024-02-16

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Mooseok JANG ,  Gookho Song ,  Dong-Gu Lee

IPC: G01J3/28 ,  G01J3/45

CPC classification number: G01J3/2823 ,  G01J3/45 ,  G01J2003/284

Abstract: Provided are a hyperspectral image sensor and a hyperspectral imaging system including the hyperspectral image sensor. The hyperspectral image sensor includes a light-receiving sensor that is pixelated, and a plurality of metasurfaces that are arranged in front of the light-receiving sensor apart from each other in a stacking direction, and each have an array of meta-atoms. At least one of the plurality of metasurfaces is a random metasurface in which the meta-atoms are disorderly arranged, and a speckle pattern is formed on a sensing surface of the light-receiving sensor by the plurality of metasurfaces.