24 papers · ranked by Valyu relevance
Edwin Alexani, Justin P. Gallagher, Donald F. Figer
The Habitable Worlds Observatory (HWO) is NASA's current New Great Observatory concept. HWO will observe the universe to search for life beyond Earth. It will need unprecedented instrument stability and detector performance. However, no single detector technology currently satisfies HWO's demanding specifications.…
Sulaimon Balogun, Andreas E. Vasdekis
Optical imaging systems are fundamentally constrained by a tradeoff between field of view (FoV) and spatial resolution. Long working-distance objectives, routinely used in biological imaging and especially in light-sheet microscopy, provide large FoV but reduced numerical aperture (NA) and magnification, broadening the…
Y. Degerli, R. Aleksan, R. Casanova, Y. Gan + 8 more
MiniCACTUS-v2 is a monolithic sensor prototype designed in LF 150 nm CMOS process for time tagging of individual Minimum Ionizing Particles with an accuracy better than 100 ps. The sensing element is a deep n-well/p-substrate diode without internal amplification. To minimize detector capacitances, the analog front-ends…
Andrew Scott, Claus Bauzà, Adrià Bofill-Petit, Albert Font + 11 more
We present the design and characterisation of a 4.2-megapixel, wafer-scale CMOS image sensor, achieving over 5000 frames per second at full resolution. The sensor has a pixel pitch of 58 µm square pixels, thus being as large as a full 200 mm wafer. The sensor is read out on two sides and features column-parallel…
Supriyo Ghosh, William Martin, Hugh R. A. Jones, Angaraj Duara + 2 more
The dynamic range available from a sensor is vital to its utility. The limits on the dynamic range that can be obtained from an image sensor are set by the brightest and faintest objects that can be detected. In recent years, CMOS (complementary metal-oxide-semiconductor) image sensors (CIS) have gained high popularity…
Mauro David, Alicja Dabrowska, Masiar Sistani, Zehao Song + 14 more
Sensing and Ultrafast Photoresponse in Silicon-Based Plasmonic Detectors Authors: Mauro David, Alicja Dabrowska, Masiar Sistani, Zehao Song, Francesco Maraspini, Yina Wu, Matthaeus Wenk, Andreas Fuchsberger, Lilian Vogl, Peter Schweizer, Rolf Szedlak, Benedikt Schwarz, Walter Michael Weber, Gottfried Strasser, F.…
Moshe Avraham, Yael Nemirovsky, Stefano Mariani, Francisco Falcone + 2 more
Infrared (IR) thermal sensors on CMOS-SOI-MEMS platforms enable scalable, low-cost thermal imaging but require optimized optical, thermal, and mechanical performance. This paper presents a multiphysics modeling framework to study the integration of Metasurface absorbers into a Thermal CMOS-SOI-MEMS IR sensor. Using…
Haley R. Stueber, Tanmoy Chattopadhyay, Tonya L. Peshel, Abigail Y. Pan + 11 more
Future strategic X-ray missions, such as those targeted by the Great Observatories Maturation Program (GOMaP), require fast, low-noise X-ray imaging spectrometers. To achieve the speed and noise capabilities required by such programs, our Stanford team, in collaboration with the MIT Kavli Institute (MKI) and MIT…
Sergey Tsarev, Yuliia Kominko, Kyuik Cho, Lorenzo J. A. Ferraresi + 7 more
with Alternating Voltage for Stable Perovskite Image Sensors Authors: Sergey Tsarev, Yuliia Kominko, Kyuik Cho, Lorenzo J. A. Ferraresi, Gebhard Matt, Kostiantyn Sakhatskyi, Volodymyr Svintozelskyi, Daria Proniakova, Taekwang Jang, Maksym Kovalenko, Sergii Yakunin Perovskite photodetectors have emerged as a potential…
Hyuntae Jeong, Pushkaraj Joshi, Yinshi Hu, Jiwon Kim + 3 more
Label-free tracking of adherent cell migration could enable important insights into biological processes such as tissue repair, inflammatory response, or cancer progression. Nevertheless, visualizing unlabeled animal cells using optical microscopy remains challenging due to low contrast as well as frequent changes in…
Haley R. Stueber, Tanmoy Chattopadhyay, Peter Orel, Steven W. Allen + 16 more
Next generation X-ray observatories require fast, low-noise, low-power, multi-megapixel imaging spectrometers. To meet these demands, the X-ray Astronomy and Observational Cosmology (XOC) Group at Stanford, in partnership with the MIT Kavli Institute and MIT Lincoln Laboratory (MIT-LL), is developing multi-channel…
Li, V. A., Akindele O. A, Bondin + 7 more
We first briefly describe the history and motivation behind Cherenkov and scintillation light detection. We then discuss the instrumentation needed to detect these photons as it applies to both photodetectors and readout electronics. One of the motivations is future large neutrino detectors that could in principle…
Tanmoy Chattopadhyay, Sven Herrmann, Kevan Donlon, Ilya Prigozhin + 15 more
The Single electron Sensitive Read Out (SiSeRO) technology is a new device class designed to support the needs of future X-ray and optical astronomical telescopes that will require fast, low-noise, megapixel spectro-imagers. Developed at MIT Lincoln Laboratory, in collaboration with Stanford University and MIT, the…
Kai-Chun Lin, Marc Dandin
We report a 0.18 µm CMOS lab-on-a-chip system that monolithically integrates a passive radio frequency identification (RFID) interface and an 8 × 8 array of capacitance sensors configured for measuring the capacitance change resulting from an overlying biological specimen. This lab-on-CMOS platform is designed to…
Tonya L. Peshel, Abigail Y. Pan, Tanmoy Chattopadhyay, Steven W. Allen + 17 more
Flagship observatories require single-photon detectors with ultra-fast readout, sub-electron noise performance, and scalable large-format architectures. The X-ray Astronomy and Observational Cosmology group at Stanford, in collaboration with the MIT Kavli Institute and MIT Lincoln Laboratory, is developing readout…
Antoni Rogalski, Jin Wang, Fang Wang, Zhiping He + 2 more
Organic semiconductors (OSCs) have been considered as projecting family of optoelectronic materials broadly investigated for more than 40 years due to capability to tune properties by adjusting chemical structure and simple processing. The OSCs performance has been substantially increased, due to the fast development…
Yan Liu, Yongxin Deng, Quanwei Zhang, Huafeng Li + 7 more
Silicon carbide (SiC), a third-generation wide-bandgap semiconductor, demonstrates prominent application advantages for extreme-environment sensing scenarios including deep-space exploration, nuclear reactor monitoring, and fusion device diagnosis, which benefit from its excellent radiation resistance, high-temperature…
Caroline Li, Jian-young Wu
Optical recording from large numbers of neurons is an indispensable technique for studying neuronal ensembles. We use optical sectioning through pinhole illumination to reduce the background fluorescence (F_0_) and increase the optical signal (ΔF/F_0_) in ex vivo brain slices densely labeled with GCaMP6f, allowing an…
Neil Moffat, Jose Alfonso Soto Oton, Gemma Rius, Enric Cabruja + 1 more
We introduce an innovative graphene-on-silicon photodiode designed for low penetrating radiation. Its standout feature lies in its remarkably-thin dead layer in the entrance window, setting it apart from existing photodetectors. Conventional photodetectors suffer from sensitivity limitations in the low wavelength or…
Chiara Rita Failla, Simone Amaducci, Gaetano Elio Poma, Paolo Finocchiaro + 2 more
Highlights What are the main findings? 1. A light readout from scintillators by means of a SiPM can or cannot give rise to non-linearity at a high energy, depending on the light decay time and on the number of SiPM microcells.What is the implication of the main finding? 1. A careful choice of scintillator and SiPM can…
Authors not listed
We present a mechanistic framework to characterize photon absorption in quantum dots, enabling rational optimization of image sensor designs. Our analysis is based on the Analytic Path structured-field model, which treats both electrons and photons as extended electromagnetic structures rather than point particles.…
J. Demas, L. Tan, S. Ramachandran
The performance of a laser scanning microscope inevitably depends on the performance of the point detector. As laser scanning approaches aim to penetrate deeper in tissue, there is a commensurate need for detectors that can operate with high sensitivity, bandwidth, and dynamic range at near-infrared wavelengths where…
Kevin T. Crampton, Alan G. Joly, Long D. Nguyen, Saleem Iqbal + 2 more
Coherent structured illumination microscopy (c-SIM) is a synthetic aperture optical technique for sub-diffraction limit imaging that extends the utility of traditional SIM to non-fluorescent samples. Here, we present a complementary 5-beam implementation of c-SIM that provides enhanced optical sectioning compared to…
Authors not listed
Smart batteries are equipped with sensors that monitor temperature, state of charge, and strain during utilization. This data estimates the battery's state of health, crucial to increasing battery life by adapting battery use and triggering self-healing mechanisms. However, few studies are devoted to the reliability of…