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<p>Chapter 1. Fundamentals of Phototransduction in Semiconductors.- Chapter 2. Perimeter-Gated Single-Photon Avalanche Diodes.-Chapter 3. Optoelectronic Characteristics of Perimeter-Gated Single-Photon Avalanche Diodes.- Chapter 4. Perimeter-Gated Single Photon Avalanche Diode Imagers.- Chapter 5. Perimeter Gated Single-Photon Avalanche Diode Arrays as Hardware Security Primitives.- Chapter 6. Silicon Photomultipliers.- Chapter 7. Readout Strategies and Asynchronous Architectures.- Chapter 8. Dead Time Correction in Single-Photon Avalanche Diode Front-Ends.- Chapter 9. Conclusions, Contributions, and Future Work.</p>

<p><strong>Marc Dandin</strong> received the B.S. and M.S. degrees in Electrical Engineering and the PhD degree in Bioengineering, all from the University of Maryland, College Park, MD, USA. He is currently an Assistant Professor with the Department of Electrical and Computer Engineering at Carnegie Mellon University, Pittsburgh, PA, USA, where he also holds a courtesy appointment in the Biomedical Engineering Department. His current research focuses on integrated circuit design and microsystems development for biomedical applications. He was an Adjunct Professor of Electrical Engineering at the George Washington University, Washington, DC, USA, where he developed and taught graduate courses in analog and radio-frequency integrated circuit design. He was the Founder and CEO of Kiskeya Microsystems LLC, Rockville, MD, USA, a company developing point-of-care diagnostics technologies for resource-limited settings. He is an intellectual property professional with over ten years of experience in patent preparation and prosecution. He is a Senior Member of the IEEE and the recipient of the Early Career Distinguished Alumni Award from the University of Maryland, College Park. He is also the recipient of the Fischell Fellowship in Biomedical Engineering and of the Jimmy H.C. Lin Award for Entrepreneurship. He is a member of the Advisory Board of the Fischell Department of Bioengineering at the University of Maryland, College Park.<br>
<strong>Nicole McFarlane</strong> is an Associate Professor at the University of Tennessee. Her work focuses on circuits and devices for sensing systems, and her research directions include carbon-based nanostructures and CMOS-based solutions for biological, environmental, and nuclear science applications. She also works on hardware implemented security solutions and tradeoffs on information and power in mixed-signal systems. She currently serves as the Advance Professor in the Tickle College of Engineering. She serves on the Biomedical and Life Science Circuits and Systems and the Sensory Systems Technical Committees for the IEEE Circuits and Systems Society (CASS) and was a member of the IEEE CASS Board of Governors for 2018-2020 and 2021-2023 terms. She has been an Associate Editor for the IEEE Transactions on Biomedical Circuits and Systems and the IEEE Open Journal of Circuits and Systems. She has also served as the Associate Editor-in-Chief for Digital Communications for the IEEE Open Journal on Circuits and Systems and is currently serving as the Editor-in-Chief for the journal.<br>
<strong>Md Sakibur Sajal</strong> received his B.S. degree in Electrical and Electronic Engineering from Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh in 2017. He served as an Adjunct Lecturer at BUET before joining United International University, Dhaka, Bangladesh as a full-time faculty in the same year. He joined the department of Electrical and Computer Engineering at Carnegie Mellon University as a graduate student in the Fall of 2020 &nbsp;where he received his M.S. degree in 2023. Currently, he is a PhD candidate at Carnegie Mellon, and &nbsp;his research focus is the development of perimeter gated single photon avalanche diode (pg-SPAD) imagers for novel applications. His work on pg-SPAD imagers has resulted in multiple publications, notably on physically unclonable functions (PUFs) implemented with pg-SPADs and on true random number generation with entropy maximization by noise modulation.&nbsp;</p>

<p><strong>Fahimeh Dehghandehnavi </strong>received her B.S. degree in Electrical and Electronic Engineering in 2019 from the University of Tehran, Tehran, Iran, and her M.S. in Electrical and Computer Engineering in 2022 from Carnegie Mellon University, Pittsburgh, PA, USA. &nbsp;Currently, she is a Ph.D. candidate in the Department of Electrical and Computer Engineering at Carnegie Mellon University. Her doctoral research focuses on CMOS sensors ranging from pg-SPAD imagers to capacitance biosensors.&nbsp;<br>
<strong>Babak Nouri </strong>&nbsp;earned the B.S. degree in Electrical Engineering from George Mason University, the M.S. degree in Electrical Engineering from the Virginia Polytechnic Institute, and the PhD degree in Electrical Engineering, from the University of Maryland, College Park. His doctoral research at the University of Maryland (College Park), focused on the design, simulation, fabrication and testing of integrated single-photon sensing and processing systems based on single-photon avalanche diode (SPAD) pixel detectors. Notably, his worked focused on the design, development and testing of: large-area digital SPAD pixels structurally adapted for ultra-low dark noise levels, with specialized front-end electronics for high digital throughput; SPAD-based digital readout detector arrays with on-chip analog encoding of aggregated digital pixel outputs ; integrated decoding architectures for free-running digitization and readout of SPAD-based digital pixel arrays, and on novel analytical models for improved dead time corrections in SPAD front-ends. He also has served as an adjunct professor in advanced analog electronic design at the George Washington University (GWU), and as a guest technical reviewer for the Optics Express journal.&nbsp;</p>

<p>This book covers the latest trends in the design of single-photon avalanche diodes (SPADs), which are the front-end sensors in modern photon counting systems. The authors describe the fundamental physics that enable photon counting in these devices. They also discuss systems that are made from these detectors, specifically describing circuit architectures that may be used to achieve high-fidelity photon counting. Coverage features example devices and systems designed in the authors’ research groups as well as different approaches undertaken by other experts in the field.</p>

<p>The authors take a unique, modular approach that covers every aspect of the design stack, with stand-alone chapters, allowing readers to focus on specific aspects of the technology stack. Coverage includes the device-physics aspects of the detectors, their integration in modern electronics fabrication technologies like CMOS, and application-specific systems that utilize these detectors.</p>

<ul>
<li>Covers the latest trends in the design of single-photon avalanche diodes (SPADs);</li>
<li>Takes a unique approach that covers every aspect of the design stack;</li>
<li>Guides readers through implementing experimental test beds for device and system characterization projects.</li>
</ul>

Covers the latest trends in the design of single-photon avalanche diodes (SPADs) Takes a unique approach that covers every aspect of the design stack Guides readers through implementing experimental test beds for device and system characterization