Results 171 to 180 of about 372,055 (343)
Quantifying the Sensitivity of Superconducting High-Resolution X-Ray Spectrometers [PDF]
, 2004 Superconducting tunnel junction (STJ) X-ray spectrometers have been developed for synchrotron-based high-resolution soft X-ray spectroscopy. We are quantifying the improvements in sensitivity that STJ spectrometers can offer for the analysis of dilute ...
Friedrich, S, Drury, O
core
Miniaturized on-chip spectrometer enabled by electrochromic modulation
Light: Science & ApplicationsMiniaturized on-chip spectrometers with small footprints, lightweight, and low cost are in great demand for portable optical sensing, lab-on-chip systems, and so on.
Menghan Tian +7 more
doaj +1 more source
Velocity‐Tunable Exciton‐Photon Hybridization in Cathodoluminescence
Advanced Functional Materials, EarlyView.Transition‐radiation resonances in suspended thin crystals hybridise with excitonic transitions under free‐electron excitation. By tuning the electron energy, the photonic resonances are continuously detuned across the exciton states, enabling controllable exciton–photon hybridisation below the diffraction limit without altering the system geometry ...
Sven Ebel +4 more
wiley +1 more source
High acquisition rate infrared spectrometers for plume measurement [PDF]
, 2014 International audienceFor a few years, Onera has developed static Fourier transform spectrometers. These spectrometers are napshot and benefit from a high étendue, thus making them well suited for measuring fast moving scenes, such as rocket plumes.
Boischot, A. +8 more
core
Advanced Functional Materials, EarlyView.We report a unique color‐sensing phenomenon of a TiO2/SbSI:Sb2S3 device utilizing X‐ray absorption. Based on the revealed penetration and adsorption of water onto TiO2, we successfully improved the color response speed and sensitivity by incorporating a hydrophilic polymer interlayer, thereby opening up opportunities for photodetection applications ...
Tai Kobayashi +9 more
wiley +1 more source
Performance limit of on-chip speckle spectrometers [PDF]
Disorder-driven, integrated speckle spectrometers offer exceptional spectral resolution within a compact design. They benefit from enhanced optical path lengths due to multiple light scattering events, however, often at the cost of low optical throughput.
Schulz, Sebastian A. +3 more
core
Implantable Ionic Memristors Based on Natural Polymer Heterojunctions
Advanced Functional Materials, EarlyView.We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee +6 more
wiley +1 more source
High Performance Durable Vanadium Dioxide Spectral Selective Modulation Smart Windows
Advanced Functional Materials, EarlyView.Crystallinity‐enhanced VO2 nanoparticles with a self‐limited amorphous oxidation shell achieve an order of magnitude durability improvement and high spectral selective modulation performance (luminous transmittance of 28.5%, solar modulation of 10.5%, and mid‐infrared emissivity modulation of 0.5) for smart windows.
Bin Li +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.In this work, we highlight a unique material platform capable of producing three distinct room temperature (RT) photoluminescence (PL) resonances from spatially separated regions composed of a heterobilayer (HBL), a homobilayer (HoBL), and an heterotrilayer (HTL) transition metal dichalcogenide (TMD) heterostructures configuration on a highly ...
Bhabani Sankar Sahoo +8 more
wiley +1 more source