Resonant cavity enhanced infrared photodiodes

Andrew Marshall; Andrew Bainbridge; Laura Hanks; Adam P. Craig

doi:10.1117/12.2664355

15 June 2023 Resonant cavity enhanced infrared photodiodes

Andrew Marshall, Andrew Bainbridge, Laura Hanks, Adam P. Craig

Author Affiliations +

Proceedings Volume 12534, Infrared Technology and Applications XLIX; 125341H (2023) https://doi.org/10.1117/12.2664355
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

We report on a multi-year development effort demonstrating resonant cavity enhanced photodiodes (RCE-PDs) with an all-epitaxial architecture, exploiting the GaSb matched material system and its increasingly popular family of IR absorbers. RCE-PDs redefine the relationship between signal and noise generation within IR detectors, breaking some of the performance limits constraining conventional IR detectors. High performance RCE-PDs are achieved with resonance wavelengths from the SWIR to the LWIR, using GaSb/AlAsSb DBR mirrors and InGaAsSb, InAs, InAsSb and T2SL absorbers. Finally, we introduce a graded thickness RCE-PD which can perform the function of a spectrometer on a chip.

Conference Presentation

Citation Download Citation

Andrew Marshall, Andrew Bainbridge, Laura Hanks, and Adam P. Craig "Resonant cavity enhanced infrared photodiodes", Proc. SPIE 12534, Infrared Technology and Applications XLIX, 125341H (15 June 2023); https://doi.org/10.1117/12.2664355

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