Nanopillar optical antenna nBn detectors for subwavelength infrared pixels

Chung Hong Hung; Pradeep Senanayake; Wook-Jae Lee; Alan Farrell; Nick Hsieh; Diana L. Huffaker

doi:10.1117/12.2177483

4 June 2015 Nanopillar optical antenna nBn detectors for subwavelength infrared pixels

Chung Hong Hung, Pradeep Senanayake, Wook-Jae Lee, Alan Farrell, Nick Hsieh, Diana L. Huffaker

Author Affiliations +

Proceedings Volume 9481, Image Sensing Technologies: Materials, Devices, Systems, and Applications II; 948109 (2015) https://doi.org/10.1117/12.2177483
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

The size, weight and power (SWaP) of state of the art infrared focal plane arrays are limited by the pixel size approaching the diffraction limit. We investigate a novel detector architecture which allows improvements in detectivity by shrinking the absorber volume while maintaining high quantum efficiency and wide field of view (FOV). It has been previously shown that the Nanopillar Optical Antenna (NOA) utilizes 3D plasmonic modes to funnel light into a subwavelength nanopillar absorber. We show detailed electro-optical simulations for the NOA-nBn architecture for overcoming generation recombination current with suitable surface passivation to achieve background limited infrared performance.

Citation Download Citation

Chung Hong Hung, Pradeep Senanayake, Wook-Jae Lee, Alan Farrell, Nick Hsieh, and Diana L. Huffaker "Nanopillar optical antenna nBn detectors for subwavelength infrared pixels", Proc. SPIE 9481, Image Sensing Technologies: Materials, Devices, Systems, and Applications II, 948109 (4 June 2015); https://doi.org/10.1117/12.2177483

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