Results 71 to 80 of about 11,966 (239)
Concentric Perfect Optical Vortex Beam Generated by a Digital Micromirrors Device
IEEE Photonics Journal, 2017 We propose a kind of perfect optical vortex beam (POV) generated via Fourier transformation of Bessel-Gauss (BG) beams through encoding of the amplitude of the optical field with binary amplitude digital micromirrors device.
Ziqiang Xin +2 more
doaj +1 more source
Advanced Science, EarlyView.A graphene‐based electrical biosensor enables rapid and highly sensitive detection of GHB at 100 fm in both standard solutions and artificial urine, providing reliable point‐of‐need screening for drug‐facilitated sexual assault. The platform demonstrates strong selectivity, fast response, and a wide dynamic range, supporting accurate detection in ...
Jai Eun An +8 more
wiley +1 more source
Red Blood Cells as Endogenous Biotweezers for Optical Micromanipulation In Vivo
Advanced Science, EarlyView.By synergistically integrating the long‐distance manipulation fiber probe (LDMFP) and endogenous red blood cells (RBCs) as biocompatible optical elements, a natural RBC biotweezer was developed for the desired microparticle manipulation and immune cell activation within living vasculature, which might offer an alternative tool for intravital optical ...
Tong Yang +9 more
wiley +1 more source
Giant Magnetic Purcell Effect Induced by High‐Order Mie Resonances
Advanced Science, EarlyView.High‐order Mie resonances in dielectric spheres selectively amplify magnetic dipole emission from Eu3+ emitters, producing a giant magnetic Purcell effect. Localized emitters can efficiently access high‐order resonant modes, and the low‐loss TiO2 platform enables direct far‐field observation of the enhanced emission.
Haonan Shi +6 more
wiley +1 more source
Advancing Energy Efficiency in Smart Windows via Dual‐Responsive Electro‐Thermochromism
Advanced Science, EarlyView.A durable and stable quasi‐solid‐state electro‐thermal dual‐responsive photothermal regulation device has been employed in advanced energy‐efficient smart windows. The devised device not only incorporates a thermochromic hydrogel characterized by high ionic conductivity, high optical transmittance, and a low LCST, but also comprises an electrochromic ...
Tongyu Chen +10 more
wiley +1 more source
Nanophotonic projection system
Optics Express, 2015 Low-power integrated projection technology can play a key role in development of low-cost mobile devices with built-in high-resolution projectors. Low-cost 3D imaging and holography systems are also among applications of such a technology. In this paper, an integrated projection system based on a two-dimensional optical phased array with fast beam ...
Aflatouni, Firooz +3 more
openaire +3 more sources
Advanced Intelligent Systems, EarlyView.Neuro‐evolution can boost machine‐learning optimization of chiral metasurfaces. By integrating the NEAT algorithm into a deep‐learning framework, we enable the efficient design of visible‐spectrum chiroptical responses. NEAT autonomously evolves neural‐network architectures and weights, reducing manual tuning.
Davide Filippozzi, Arash Rahimi‐Iman
wiley +1 more source
Nanophotonics for Information Systems
Journal of Physics: Conference Series, 2010 This paper explores the role of nanotechnology with special focus on nanophotonics in inhomogeneous metamaterials with applications for optical information and signal processing, communications, sensing, and health care.
Y Fainman, K Ikeda, M Abashin, D Tan
openaire +1 more source
Correction to: Ultrasonic signal detection based on Fabry–Perot cavity sensor
Visual Computing for Industry, Biomedicine, and Art, 2021 Wu Yang +3 more
doaj +1 more source
Real-Time and In-Flow Sensing Using a High Sensitivity Porous Silicon Microcavity-Based Sensor
Sensors, 2017 Porous silicon seems to be an appropriate material platform for the development of high-sensitivity and low-cost optical sensors, as their porous nature increases the interaction with the target substances, and their fabrication process is very simple ...
Raffaele Caroselli +5 more
doaj +1 more source