Publication

Flexible Single-Photon Image Sensors, CMOS Circuits for Biological Sensing and Processing

2018
Book Chapters

Abstract

Photon-counting imaging technology has applications in many fields such as fluorescence lifetime imaging microscopy (FLIM), time-resolved Raman spectroscopy, 3D imaging, and even space communications. The requirement to detect single photons with picosecond temporal resolution makes single-photon avalanche photodiode (SPAD) a popular choice. Advanced biomedical imaging applications such as pill cameras, retinal prosthesis, and implantable biocompatible monitoring sensors require a compact image system, which can be implanted into a living body. To meet these requirements, novel single-photon image sensor solution needs to be developed, in which new substrate post-processing and backside illumination or even dual-side illumination are core technologies, with inherent CMOS compatibility as a prerequisite. This chapter proposed and demonstrated the world’s first flexible CMOS single-photon avalanche diode image sensor, providing a suitable solution for implantable biomedical imaging or monitoring applications, and wherever a curved imaging plane is essential.

Official source

https://infoscience.epfl.ch/entities/publication/ee7a06f8-68f5-46c8-9910-1cabc7363696

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2018
Book Chapters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ee7a06f8-68f5-46c8-9910-1cabc7363696

About this result

Related concepts (32)

Raman spectroscopy

Raman spectroscopy (ˈrɑːmən) (named after Indian physicist C. V. Raman) is a spectroscopic technique typically used to determine vibrational modes of molecules, although rotational and other low-frequency modes of systems may also be observed. Raman spectroscopy is commonly used in chemistry to provide a structural fingerprint by which molecules can be identified. Raman spectroscopy relies upon inelastic scattering of photons, known as Raman scattering.

Medical imaging

Medical imaging is the technique and process of imaging the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology). Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease. Medical imaging also establishes a database of normal anatomy and physiology to make it possible to identify abnormalities.

CMOS

Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss", siːmɑːs, -ɒs) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. CMOS technology is used for constructing integrated circuit (IC) chips, including microprocessors, microcontrollers, memory chips (including CMOS BIOS), and other digital logic circuits.

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Flexible Single-Photon Image Sensors, CMOS Circuits for Biological Sensing and Processing

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