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High sensitivity single-photon avalanche diode array

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Single Photon Counting UV Solar-Blind Detectors Using Silicon and III-Nitride Materials

Edoardo Charbon, Preethi Padmanabhan

Ultraviolet (UV) studies in astronomy, cosmology, planetary studies, biological and medical applications often require precision detection of faint objects and in many cases require photon-counting detection. We present an overview of two approaches for ac ...

2016

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For many scientific applications, electron multiplying charge coupled devices (EMCCDs) have been the sensor of choice because of their high quantum efficiency and built-in electron amplification. Lately, many researchers introduced scientific complementary ...

Spie-Int Soc Optical Engineering2016

Visualization of Terahertz radiation on silicon-based CCD and CMOS sensor at high resolution

Christoph Peter Hauri, Mostafa Shalaby

Low frequency THz radiation is visualized by means of a charged-coupled device designed for optical frequencies and a CMOS sensor. This technological advance opens novel opportunities in THz imaging as it offers smallest pixel size and large chip size at l ...

Ieee2016

Noise Reduction Techniques and Scaling Effects towards Photon Counting CMOS Image Sensors

Christian Enz, Assim Boukhayma

This paper presents an overview of the read noise in CMOS image sensors (CISs) based on four-transistors (4T) pixels, column-level amplification and correlated multiple sampling. Starting from the input-referred noise analytical formula, process level opti ...

Mdpi Ag2016

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A variety of smart imaging and neuromorphic applications perform time-domain image acquisition in order to imitate biological systems and reduce the growing transmission bandwidth of the modern imaging devices. Because they operate in time-domain, they req ...

Elsevier2015

Transparent Organic Photodetector using a Near-Infrared Absorbing Cyanine Dye

Roland Hany, Hui Zhang

Organic photodetectors are interesting for low cost, large area optical sensing applications. Combining organic semiconductors with discrete absorption bands outside the visible wavelength range with transparent and conductive electrodes allows for the fab ...

Nature Publishing Group2015

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Traditionally, photodiodes operate at static reverse bias, and incident light intensity is obtained from the relatively week photocurrent. In this paper, we introduce a different concept of photodiode function: the photodiode is used in a dynamic regime wh ...

American Institute of Physics2015

Design and characterization of micromachined sensor array integrated with CMOS based optical readout

Yusuf Leblebici, Yüksel Temiz, Ulas Adiyan, Refik Burak Erarslan

This paper reports a micro electro-mechanical system (MEMS) based sensor array integrated with CMOS-based optical readout. The integrated architecture has several unique features. MEMS devices are passive and there are no electrical connections to the MEMS ...

Elsevier2014

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A CMOS compatible Ge photodetector (Ge-PD) fabricated on Si substrates has been shown to be suitable for near infrared (NIR) sensing; linear and avalanche detection, in both proportional and Geiger modes have been demonstrated, for photon counting at room ...

2014

Ultra-Low-Temperature Silicon and Germanium-on-Silicon Avalanche Photodiodes

Mahdi Aminian

In this thesis we propose the use of photodiodes fabricated in planar technologies to address the detection problem in these applications. A number of solutions exist, optimized for these wavelengths, based on Germanium (Ge) and other III-V materials. In t ...

EPFL2014