Title : Samsung, UCSD, and University of Southern Mississippi Develop SWIR to Visible Image Converter
link : Samsung, UCSD, and University of Southern Mississippi Develop SWIR to Visible Image Converter
Samsung, UCSD, and University of Southern Mississippi Develop SWIR to Visible Image Converter
Phys.org, Newswise, UCSD: Advanced Functional Materials paper "Organic Upconversion Imager with Dual Electronic and Optical Readouts for Shortwave Infrared Light Detection" by Ning Li, Naresh Eedugurala, Dong-Seok Leem, Jason D. Azoulay, and Tse Nga Ng from Samsung Advanced Institute of Technology, UCSD, and University of Southern Mississippi presents a flat SWIR to visible converting device:
"...an organic upconversion imager that is efficient in both optical and electronic readouts, extending the capability of human and machine vision to 1400 nm, is designed and demonstrated. The imager structure incorporates interfacial layers to suppress non‐radiative recombination and provide enhanced optical upconversion efficiency and electronic detectivity. The photoresponse is comparable to state‐of‐the‐art organic infrared photodiodes exhibiting a high external quantum efficiency of ≤35% at a low bias of ≤3 V and 3 dB bandwidth of 10 kHz. The large active area of 2 cm2 enables demonstrations such as object inspection, imaging through smog, and concurrent recording of blood vessel location and blood flow pulses. These examples showcase the potential of the authors’ dual‐readout imager to directly upconvert infrared light for human visual perception and simultaneously yield electronic signals for automated monitoring applications."
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