Embedded dielectric filter designs for spectral separation in a focal plane array

Daniel Chmielewski; Rudy Fink; Steve Allen; Mike Garter; Nansheng Tang

doi:10.1117/12.2663820

13 June 2023 Embedded dielectric filter designs for spectral separation in a focal plane array

Daniel Chmielewski, Rudy Fink, Steve Allen, Mike Garter, Nansheng Tang

Proceedings Volume 12534, Infrared Technology and Applications XLIX; 125340J (2023) https://doi.org/10.1117/12.2663820
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

L3Harris has developed a multispectral sensor architecture that opens doors to the incorporation of enabling functionality for future applications. This sensor architecture, while detector material agnostic in nature, builds upon our type-II superlattice (T2SL) technology, which was originally developed through the tri-service Vital Infrared Sensor Technology Acceleration (VISTA) program. The sensor architecture consists of stacked absorber layers that can be individually processed as they are integrated into the sensor stack. This layer-based approach enables the insertion of additional functional structures to enhance performance, such as embedded dielectric filters for efficient spectral separation, which would not be possible in a monolithic design. Due to the additional degrees of freedom with this configuration, it is necessary to design the filter such that it is compatible with the process required to functionalize each absorber while simultaneously meeting performance requirements. In this work, we report on various filter designs impacting the performance of focal plane arrays (FPAs) having embedded dielectric filters, under various practical constraints.

Conference Presentation

Citation Download Citation

Daniel Chmielewski, Rudy Fink, Steve Allen, Mike Garter, and Nansheng Tang "Embedded dielectric filter designs for spectral separation in a focal plane array", Proc. SPIE 12534, Infrared Technology and Applications XLIX, 125340J (13 June 2023); https://doi.org/10.1117/12.2663820

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