Results 21 to 30 of about 2,134 (135)

Transimpedance amplifier with differential photodiode current sensing [PDF]

open access: yesISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349), 2003
This paper presents a balanced receiver structure suitable for wireless infrared data communications. The receiver provides a fixed photodiode bias voltage with the use of a regulated cascode input stage. Together with an active feedback loop used to eliminate dc photocurrents, the receiver implements ac coupling without the need for matching ...
Bahram Zand   +2 more
openaire   +1 more source

Physical Unclonable Function Based on 3D‐NAND Flash Array Structure With Multi‐Chip Implementation

open access: yesSmall, EarlyView.
Physical unclonable function (PUF) based on a 3D‐NAND flash array is proposed, featuring a multi‐chip structure and a massive challenge–response pair (CRP) capacity. The presented utilizes intrinsic string current variations experimentally verified across eight fabricated 48 × 24 NAND flash arrays.
Hwiho Hwang   +4 more
wiley   +1 more source

Gm-boosted differential transimpedance amplifier architecture

open access: yesIEICE Electronics Express, 2007
A modified floating biased common-gate transimpedance amplifier with improved low corner frequency is introduced. It is also shown that gm-boosting technique can be utilized for differential implementation of this transimpedance amplifier, without degrading the circuit sensitivity or using any off-chip components.
Mohsen Jalali   +3 more
openaire   +2 more sources

Turning Electrode Orientation into a Design Parameter: Gravity‐Driven Convection for Coupling Electrochemical and Enzymatic Reactions

open access: yesChemElectroChem, Volume 13, Issue 11, 3 June 2026.
Electrochemically induced density gradients are harnessed to drive gravity‐dependent convection at partially fouled electrodes. By controlling electrode orientation and surface heterogeneity, mass transport is enhanced without external stirring. This enables coupling of electrochemical reactions with enzyme catalysis on insulating domains, exemplified ...
Wathsala Prasadini Kapuralage   +3 more
wiley   +1 more source

The Role of Ultra‐Thin Buffer Layers for Achieving Ultra‐Low Dark Currents in Single‐Component Organic Photodetectors

open access: yesAdvanced Functional Materials, Volume 36, Issue 48, 15 June 2026.
Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber   +12 more
wiley   +1 more source

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

open access: yesAdvanced Functional Materials, Volume 36, Issue 46, 8 June 2026.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo   +8 more
wiley   +1 more source

Light‐Induced Entropy for Secure Vision

open access: yesAdvanced Materials, Volume 38, Issue 33, 12 June 2026.
This work realized a ternary true random number generator by exploiting stochastic traps emerging within multiple junction interfaces, and quantitatively validated the generation of high‐quality random numbers. Furthermore, it successfully demonstrated diverse applications, including AI‐resilient image security, thereby providing a valuable guide for ...
Juhyung Seo   +9 more
wiley   +1 more source

Security‐Enhanced Differential Binary‐Phase‐Shift‐Keying Quantum Key Distribution With a Wavelength‐Switchable Single‐Photon Carrier

open access: yesAdvanced Photonics Research, Volume 7, Issue 6, June 2026.
A single‐chip dual‐wavelength coherent photon source is proposed to add parametric uncertainty and improve the security of single‐photon differential binary‐phase‐shift‐keying quantum key distribution. This wavelength‐uncertain coding or decoying operation enables flexible and secure D‐BPSK‐QKD transmission over a wavelength‐division‐multiplexed ...
Sze‐En Lai   +4 more
wiley   +1 more source

Detection of Particulate Matter With Lock‐In Thermography

open access: yesCleanMat, Volume 3, Issue 2, Page 67-73, June 2026.
Accurate quantification of black carbon is essential due to its significant impact on climate, air quality, and human health. Lock‐in thermography (LIT), as implemented by NanoLockin's instrument Calorsito, offers a sensitive, scalable, and reproducible approach for detecting black carbon on filter substrates.
Alina Oetsen   +5 more
wiley   +1 more source

Feasibility of In Vivo Retinal Flavoprotein Autofluorescence Imaging in a Magnetic‐Bead‐Induced Rodent Glaucoma Model

open access: yesJournal of Biophotonics, Volume 19, Issue 6, June 2026.
A scanning laser ophthalmoscope, integrated with a real‐time optical coherence tomography (OCT) alignment monitor, detected flavoprotein fluorescence (FPF) signals associated with mitochondrial dysfunction in a rodent glaucoma model. Under 450‐nm excitation, experimental eyes showed spatially inhomogeneous signals that were absent under 505‐nm ...
Eun Ji Lee   +5 more
wiley   +1 more source

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