Progress toward an extremely compact hyperspectral imaging system for environmental characterization

Michael K. Yetzbacher; Marcos J. Montes; Marc Christophersen; Jason A. Edelberg; Joseph P. Czarnaski; Michael J. Deprenger; Steve J. Frawley; Joseph A. Schlupf

doi:10.1117/12.2531718

6 September 2019 Progress toward an extremely compact hyperspectral imaging system for environmental characterization

Michael K. Yetzbacher, Marcos J. Montes, Marc Christophersen, Jason A. Edelberg, Joseph P. Czarnaski, Michael J. Deprenger, Steve J. Frawley, Joseph A. Schlupf

Author Affiliations +

Proceedings Volume 11130, Imaging Spectrometry XXIII: Applications, Sensors, and Processing; 111300E (2019) https://doi.org/10.1117/12.2531718
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

Here we report progress in the fabrication, calibration, and testing of a compact spectral imaging camera. The camera uses a micro-array of Fabry-Perot etalons bonded directly to a broadband focal plane array sensor. The array of etalons adds negligible size and weight to the system compared to a panchromatic imager. Other recent demonstrations of compact spectral imagers in the visible and near infrared (VNIR) have commonly used arrays of etalons in a single order, thereby reducing the system bandwidth and sensitivity to achieve the required spectral resolution. Here, we demonstrate a camera utilizing multiple etalon orders in a spectral multiplexing scheme known as Multiple Order Staircase Etalon Spectrometry (MOSES). An important characteristic of the MOSES system is that there is a relaxed tradeoff between spectral resolution and sensitivity (or etalon throughput). Unlike single-order etalon techniques, MOSES allows for the reconstruction of the spectrum to the bandwidth limit of the detector and reflecting layers. This is important in coastal environmental sensing, where IR spectral features may be desired at the same time as UV light transmitted through shallow water layers. This VNIR system demonstration indicates the feasibility of MOSES devices in other wavebands.

Conference Presentation

Citation Download Citation

Michael K. Yetzbacher, Marcos J. Montes, Marc Christophersen, Jason A. Edelberg, Joseph P. Czarnaski, Michael J. Deprenger, Steve J. Frawley, and Joseph A. Schlupf "Progress toward an extremely compact hyperspectral imaging system for environmental characterization", Proc. SPIE 11130, Imaging Spectrometry XXIII: Applications, Sensors, and Processing, 111300E (6 September 2019); https://doi.org/10.1117/12.2531718

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available