Open AccessMiniature integrated micro-spectrometer array for snap shot multispectral sensing
Author(s) -
Norbert Danz,
Bernd Höfer,
Erik Förster,
Thomas Flügel-Paul,
Torsten Harzendorf,
Peter Dannberg,
Robert Leitel,
S. Kleinle,
Róbert Brunner
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.005719
Subject(s) - spectrometer , optics , multispectral image , prism , planar , grating , diffraction grating , image sensor , spectral imaging , stray light , imaging spectrometer , free spectral range , computer science , materials science , physics , computer vision , laser , computer graphics (images)
An array of micro spectrometers for parallel spectral sensing is designed, set up and tested. It utilizes a planar prism grating combination to obtain an almost linear optical system of 6 mm length only. Arranging such micro spectrometers in an array configuration yields 2'000 spectrometers when utilizing a common 4/3" CCD image sensor well adapted to e.g. microscopic image dimensions. The application in microscopic imaging in the 450-900 nm spectral range is demonstrated as proof of concept, which can be adapted to massively parallel sensing in the frame of integrated sensor concepts.