Results 241 to 250 of about 163,748 (368)

Spherical and Aspherical Lenses for Boosting the Performance of Terahertz Imaging Systems

open access: yesAdvanced Photonics Research, EarlyView.
This study investigates the enhancement of terahertz (THz) detection through the terajet effect using mesoscale dielectric lenses of various geometries. Spherical, aspherical, and cubic polytetrafluoroethylene lenses are evaluated at 0.15 and 0.3 THz, demonstrating significant improvements in responsivity and noise reduction.
El Hadj Abidi   +7 more
wiley   +1 more source

Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloidal Particles in an Integrated System

open access: yesAdvanced Photonics Research, EarlyView.
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna   +4 more
wiley   +1 more source

Legged Robot with Tensegrity Feature Bionic Knee Joint. [PDF]

open access: yesAdv Sci (Weinh)
Wen Q   +7 more
europepmc   +1 more source

Self‐Detecting Mid‐Infrared Dual‐Comb Spectroscopy Based on High‐Speed Injection‐Locked Quantum Cascade Lasers

open access: yesAdvanced Photonics Research, EarlyView.
A compact self‐detecting dual‐comb spectroscopy (DCS) system based on dispersion‐engineered, high‐speed packaged quantum cascade lasers (QCLs) at λ≈4.6 μm under coherent injection locking is demonstrated. Broad multiheterodyne comb signal with reduced tooth linewidths by orders of magnitude is recorded.
Yu Ma   +14 more
wiley   +1 more source

Dynamic gamma modulation of hippocampal place cells predominates development of theta sequences. [PDF]

open access: yesElife
Wang N   +9 more
europepmc   +1 more source

Continuous Flow Technology Enabling Photochemistry

open access: yesAdvanced Synthesis &Catalysis, Accepted Article.
The merger of continuous flow technology and modern photochemistry has enabled countless applications showcasing new opportunities for chemical synthesis demonstrating improvements in selectivity, safety, sustainability and scalability. This focused review aims to highlight a selection of recently published case studies from academic and industrial ...
Ruairi Crawford, Marcus Baumann
wiley   +1 more source

Narrow Linewidth All-Optical Microwave Oscillator Based on Torsional Radial Acoustic Modes of Single-Mode Fiber. [PDF]

open access: yesMicromachines (Basel)
Wang W   +10 more
europepmc   +1 more source

A High‐Performance Miniaturized Frequency Shift Detection System for QCM‐Based Gravimetric Sensing

open access: yesAdvanced Sensor Research, EarlyView.
A miniaturized frequency shift detection system based on a phase‐locked loop (PLL) circuit is proposed for simplifying QCM measurement, possessing excellent performance of high sensitivity, resolution, linearity, and accuracy compared with a commercial frequency analyzer.
Chenyang Gao   +6 more
wiley   +1 more source

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