Color Filter Arrays for Quanta Image Sensors

Elgendy, Omar A.; Chan, Stanley H.

doi:10.1109/tci.2020.2964238

Cited by 9 publications

(2 citation statements)

References 38 publications

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“…[94] By tuning the spectral response, in the meanwhile, they also reported the narrowband red, green, and blue photodiodes without the use of color filters. [95][96][97] Using the CCN concept in organohalide perovskites or mixed lead halides as solution-processable semiconductors, the device exhibited truly filterless narrowband detection with FWHM of less than 100 nm.…”

Section: Narrow-band Detectionmentioning

confidence: 99%

Recent Progress in Organic Photodetectors and their Applications

et al. 2020

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Organic photodetectors (OPDs) have attracted continuous attention due to their outstanding advantages, such as tunability of detecting wavelength, low-cost manufacturing, compatibility with lightweight and flexible devices, as well as ease of processing. Enormous efforts on performance improvement and application of OPDs have been devoted in the past decades. In this Review, recent advances in device architectures and operation mechanisms of phototransistor, photoconductor, and photodiode based OPDs are reviewed with a focus on the strategies aiming at performance improvement. The application of OPDs in spectrally selective detection, wearable devices, and integrated optoelectronics are also discussed. Furthermore, some future prospects on the research challenges and new opportunities of OPDs are covered.

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Section: Narrow-band Detectionmentioning

confidence: 99%

Recent Progress in Organic Photodetectors and their Applications

et al. 2020

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“…Color processing of QIS data requires some rethinking because the pixels are now below the diffraction limit. Designing new CFAs is one direction [158], [159] where one needs to find a good compromise between aliasing, crosstalk, and transmittance. The current solution for QIS is to use the so-called quad Bayer pattern where a neighborhood of 2 × 2 pixels is shared by the same color filter.…”

Section: F New Considerations For Colormentioning

confidence: 99%

Review of Quanta Image Sensors for Ultralow-Light Imaging

Ma¹,

Chan

Fossum

2022

IEEE Trans. Electron Devices

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The quanta image sensor (QIS) is a photoncounting image sensor that has been implemented using different electron devices, including impact ionizationgain devices, such as the single-photon avalanche detectors (SPADs), and low-capacitance, high conversion-gain devices, such as modified CMOS image sensors (CIS) with deep subelectron read noise and/or low noise readout signal chains. This article primarily focuses on CIS QIS, but recent progress of both types is addressed. Signal processing progress, such as denoising, critical to improving apparent signal-to-noise ratio, is also reviewed as an enabling coinnovation.Index Terms-CMOS image sensor (CIS), denoising, image quality, low-light sensor, photon-counting image sensor, quanta image sensor (QIS), subelectron read noise. I. INTRODUCTIONC OUNTING every photon is as sensitive as physics presently allows in measuring light. To count photons incident on the faceplate, optical losses must be minimized, detector quantum and collection efficiencies must be maximized, and detector dead times minimized. Measurement of ultralow quanta (light) flux using single photomultiplier tube (PMT) detector photon counting was suggested as early as the 1960s, e.g., [1]-[3]. A digital photon-counting image sensor using APDs was suggested by Nippon Hōsō Kyōkai (NHK) [4]. In 1996, a hybridized photon-counting image sensor readout integrated circuit (ROIC) was investigated by Jet Propulsion Laboratory (JPL) [5] and the first solid-state single-photon avalanche detector (SPAD) was introduced [6].

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