Results 31 to 40 of about 25,421 (250)
CMOS-integrated organic neuromorphic imagers for high-resolution dual-modal imaging
Nature CommunicationsSimultaneously capturing static images and processing dynamic visual information within a single sensor enables a more comprehensive and efficient acquisition of scene information, thereby enhancing the understanding and processing of complex scenes ...
Salihuojia Talanti +10 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami +4 more
wiley +1 more source
Image Transport Through Meter-Long Randomly Disordered Silica-Air Optical Fiber
Scientific Reports, 2018 We present a randomly disordered silica-air optical fiber featuring a 28.5% air filling fraction in the structured region, and low attenuation below 1 dB per meter at visible wavelengths.
Jian Zhao +6 more
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Scatterometer and Intensity Distribution Meter With Screen Image Synthesis
IEEE Photonics Journal, 2020 A screen image synthesis (SIS) system is superior than the conventional methods in terms of high-speed measurement and low screen-cross-talk noise when used as a whole-field light-distribution meter.
Yeh-Wei Yu +7 more
doaj +1 more source
Optical Precursor of a Single Photon [PDF]
Physical Review Letters, 2011 We report the direct observation of optical precursors of heralded single photons with step- and square-modulated wave packets passing through cold atoms. Using electromagnetically induced transparency and the slow-light effect, we separate the single-photon precursor, which always travels at the speed of light in vacuum, from its delayed main wave ...
Zhang, Shanchao +5 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
Application of A Frequency Chirped RF Intensity Modulated 532 nm Light Source in Underwater Ranging
IEEE Photonics Journal, 2020 A radio-frequency (RF) intensity-modulated light source at 532 nm was built for underwater ranging. The intensity of a narrow-linewidth laser at 1064 nm was modulated via a Mach-Zehnder electro-optical modulator.
Kun Li +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source
Super-resolution imaging using nano-bells
Scientific Reports, 2018 In this paper we demonstrate a new scheme for optical super-resolution, inspired, in-part, by PALM and STORM. In this scheme each object in the field of view is tagged with a signal that allows them to be detected separately.
Rafael Fuentes-Domínguez +4 more
doaj +1 more source
Crystals, 2021 The multifunctional snapshot angle-resolved spectroscopy (ARS) system capable of electroluminescence, photoluminescence, and reflectance measurements for thin film devices is developed based on the k-space imaging technique.
Jui-Fen Chang +5 more
doaj +1 more source