Results 51 to 60 of about 4,020,412 (320)
Observation of acoustic Dirac-like cone and double zero refractive index
Nature Communications, 2017 Zero index materials where sound propagates without phase variation, holds a great potential for wavefront and dispersion engineering. Recently explored electromagnetic double zero index metamaterials consist of periodic scatterers whose refractive index
Marc Dubois +4 more
semanticscholar +1 more source
Advanced Biology, EarlyView.The successful in situ polymerization of microtubules in giant polymer‐lipid hybrid vesicles is illustrated. The microtubules formed in the giant hybrid vesicles exhibit different morphologies including lumenal network formation and membrane association. Abstract Creating artificial cells with a dynamic cytoskeleton, akin to those in living cells, is a
Paula De Dios Andres +4 more
wiley +1 more source
Sensors, 2018 Whispering gallery mode (WGM) resonators have become increasingly diverse in terms of both architecture and applications, especially as refractometric sensors, allowing for unprecedented levels of sensitivity. However, like every refractometric sensor, a
Yvonne Q. Kang +3 more
doaj +1 more source
Single View Refractive Index Tomography with Neural Fields [PDF]
arXiv, 2023 Refractive Index Tomography is the inverse problem of reconstructing the continuously-varying 3D refractive index in a scene using 2D projected image measurements. Although a purely refractive field is not directly visible, it bends light rays as they travel through space, thus providing a signal for reconstruction. The effects of such fields appear in
arxiv
Retroreflector Approximation of a Generalized Eaton Lens [PDF]
, 2011 We extended a previous study of the Eaton lens at specific refraction angles to the Eaton lens at any refraction angle. The refractive index of the Eaton lens is complicated and has not analytical form except at a few specific angles. We derived a more accessible form of the refractive index for any refraction angle with some accuracy by ...
arxiv +1 more source
Highly sensitive multi-core flat fiber surface plasmon resonance refractive index sensor.
Optics Express, 2016 A simple multi-core flat fiber (MCFF) based surface plasmon resonance (SPR) sensor operating in telecommunication wavelengths is proposed for refractive index sensing.
A. Rifat +5 more
semanticscholar +1 more source
Hydrogel‐Based Capacitive Sensor Model for Ammonium Monitoring in Aquaculture
Advanced Engineering Materials, EarlyView.Traditional techniques for monitoring aquaculture water quality, particularly ammonium levels, harm fish. This work presents a novel capacitive sensor with an ionic hydrogel transducer to monitor ammonium concentration in real time based on the ammonium‐induced hydrogel dissociation and osmotic pressure. Monitoring aquaculture water quality, especially
Mohammad Mirzaee +3 more
wiley +1 more source
Enhanced RadOptic sensitivity in intrinsic bulk InP
AIP Advances, 2018 RadOptic detectors are a promising method to record MeV pulsed radiation for inertial confinement fusion diagnostics. Because of the low radiation-induced refractive index change sensitivity of semiconductors, these detectors have poor responses to MeV ...
Bo dong Peng +3 more
doaj +1 more source
Refractive Index Sensing by Using Mechanically Induced Long-Period Grating
IEEE Photonics Journal, 2012 In this paper, a refractive index sensor using a mechanically induced long-period grating is proposed and experimentally demonstrated. The sensing element is based on a composite optical waveguide, which is made of a single-mode fiber, a Teflon-cannula ...
Xiaojun Zhou +3 more
doaj +1 more source
Observation of Refractive Index Line Shape in Ultrafast XUV Transient Absorption Spectroscopy
Ultrafast Science, 2023 Ultrafast extreme ultraviolet (XUV) transient absorption spectroscopy measures the time- and frequency-dependent light losses after light–matter interactions.
Mingze Sun +13 more
doaj +1 more source