Results 91 to 100 of about 20,977 (202)

Uncooled, broadband terahertz bolometers using SOI MEMS beam resonators with piezoresistive readout

Microsystems & Nanoengineering
Terahertz (THz) detectors using MEMS resonators have attracted great interests owing to their high sensitivity, rapid response, and room-temperature operation capability.
Ya Zhang, Kazuki Ebata, Mirai Iimori, Qian Liu, Zihao Zhao, Ryotaro Takeuchi, Hua Li, Kazusuke Maenaka, Kazuhiko Hirakawa   +8 more
doaj   +1 more source

General‐Purpose Hexagonal Programmable Photonic Integrated Circuit with a >30 GHz Free Spectral Range

Laser &Photonics Reviews, EarlyView.
A compact and low insertion loss programmable photonic circuit is demonstrated based on a 7‐cell hexagonal waveguide mesh with a large free spectral range (FSR) of 31 GHz for a 6‐gate ring resonator configuration. Vernier rings and a dual‐injected ring configuration are demonstrated on this circuit with a further improved FSR of 93 GHz.
Yu Zhang, Xiangfeng Chen, Lukas Van Iseghem, Iman Zand, Hasan Salmanian, Antonio Ribeiro, Wim Bogaerts   +6 more
wiley   +1 more source

Optical Coherence Tomography for High‐Precision Industrial Inspection in Industry 4.0: Advances, Challenges, and Future Trends

Laser &Photonics Reviews, EarlyView.
This review examines how optical coherence tomography transforms industrial inspection by delivering real‐time, micrometer‐resolution, depth‐resolved imaging. It surveys applications across display manufacturing, thin films, microelectronics, laser processing, and coatings, evaluates performance against conventional techniques, and highlights emerging ...
Nipun Shantha Kahatapitiya, Sm Abu Saleah, Daewoon Seong, Naresh Kumar Ravichandran, Sangyeob Han, Ruchire Eranga Wijesinghe, Mansik Jeon, Jeehyun Kim   +7 more
wiley   +1 more source

Coaxial Dipole Array With Switching Transmit Sensitivities for Ultrahigh Field MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To investigate dipole antennas with electronically switchable transmit field patterns to improve flip angle homogeneity in ultra‐high field MRI. Methods Reconfigurable dipole elements that could produce two distinct electronically switchable B1+$$ {B}_1^{+} $$ field profiles were conceptualized and constructed. Eight such elements were
Dario Bosch, Georgiy A. Solomakha, Felix Glang, Martin Freudensprung, Nikolai Avdievich, Klaus Scheffler   +5 more
wiley   +1 more source

A 164-dBΩ Transimpedance Amplifier for Monolithic CMOS-MEMS Oscillators in Biosensing Applications

IEEE Access
This article presents a fully differential tunable high-gain transimpedance amplifier (TIA) conceived as a front-end circuit for monolithic CMOS-MEMS resonators operating in self-sustained oscillation mode.
Rafel Perello-Roig, Salvador Barcelo, Jaume Verd, Sebastia Bota, Jaume Segura   +4 more
doaj   +1 more source

Noise and thermal stability of vibrating micro-gyrometers preamplifiers [PDF]

, 2007
The preamplifier is a critical component of gyrometer's electronics. Indeed the resolution of the sensor is limited by its signal to noise ratio, and the gyrometer's thermal stability is limited by its gain drift.
Dupret, A., Eisenbeis, B., Gilles, J. -P., Levy, R., Mathias, H., Megherbi, S., Parrain, F.   +6 more
core   +1 more source

Magneto Acoustic Spin Hall Oscillators

, 2018
This paper introduces a novel oscillator that combines the tunability of spin Hall-driven nano oscillators with the high quality factor (Q) of high overtone bulk acoustic wave resonators (HBAR), integrating both reference and tunable oscillators on the ...
Bhave, Sunil A., Camsari, Kerem Y., Gosavi, Tanay A., Torunbalci, Mustafa Mert   +3 more
core   +1 more source

Monolithic 3D Nanoelectrode Arrays on CMOS Circuitry for Scalable, High‐Resolution Neural Recording

Small, EarlyView.
A CMOS‐integrated in vitro electrophysiology platform with 26,400 3D nanoelectrodes enables high‐resolution extracellular recordings with enhanced spatial sensitivity. Wafer‐scale, low‐temperature post‐fabrication monolithic integration of nanoelectrodes on foundry‐made CMOS chips preserves circuit functionality and electrical performance.
Aziliz Lecomte, Laurent Mazenq, Marie‐Charline Blatché, Aurélie Lecestre, Guilhem Larrieu   +4 more
wiley   +1 more source

Precision Local Strain Engineering in 2D Semiconductors and Their van der Waals Heterostructures

Small, EarlyView.
This review highlights recent advances in experimental techniques for mapping and quantifying strain, strategies for imparting programmable local strain via substrate, stressor, and interlayer coupling, and strain‐engineered functionalities in electronics, photonics, and quantum devices.
Byeong Chan Kim, Yoona Kim, Gwan‐Hyoung Lee   +2 more
wiley   +1 more source

A High-Temperature, Low-Noise Readout ASIC for MEMS-Based Accelerometers

Sensors, 2019
This paper presents the development and measurement results of a complementary metal oxide semiconductor (CMOS) readout application-specific integrated circuit (ASIC) for bulk-silicon microelectromechanical system (MEMS) accelerometers. The proposed ASIC
Min Qi, An-qiang Guo, Dong-hai Qiao
doaj   +1 more source