Small pixel SWIR imagers using InGaAs and CQDs

Michael MacDougal; Chris Mak; Jet Meitzner; Tim Strand; Andrew Hood; Jon Geske; Alexander Bessonov; Ivonne Medina-Salazar; Marat Lutfillin

doi:10.1117/12.3014241

7 June 2024 Small pixel SWIR imagers using InGaAs and CQDs

Michael MacDougal, Chris Mak, Jet Meitzner, Tim Strand, Andrew Hood, Jon Geske, Alexander Bessonov, Ivonne Medina-Salazar, Marat Lutfillin

Author Affiliations +

Proceedings Volume 13046, Infrared Technology and Applications L; 130460A (2024) https://doi.org/10.1117/12.3014241
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

SWIR imagers are seeing wide use in commercial and defense applications. The conventional choice for the detector is InGaAs lattice-matched to InP. Recently, colloidal quantum dots using PbS have shown promise as a SWIR responsive material. CQDs have the promise or reducing SWIR sensors cost substantially, but the performance difference requires more characterization. We demonstrate both InGaAs and CQDs in focal plane arrays using the same ROIC, the AE1702, which is a 640x512 format ROIC with a 5 μm pixel pitch. We, show spectra, PTC measurements, and imaging. In addition, we show measurements using 1900 nm CQDs-based FPAs.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Michael MacDougal, Chris Mak, Jet Meitzner, Tim Strand, Andrew Hood, Jon Geske, Alexander Bessonov, Ivonne Medina-Salazar, and Marat Lutfillin "Small pixel SWIR imagers using InGaAs and CQDs", Proc. SPIE 13046, Infrared Technology and Applications L, 130460A (7 June 2024); https://doi.org/10.1117/12.3014241

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