Results 41 to 50 of about 22,692 (256)

Nanoscale Refractive Index Sensors Based on Fano Resonance Phenomena

open access: yesPhotonics, 2022
In this paper, a new refractive index sensor based on Fano resonance is introduced. It is mainly composed of two parts: a metal–insulator–metal as a base waveguide and an annular resonant cavity with a double notch and a double convex circle as a ...
Yifeng Ren   +8 more
doaj   +1 more source

Plasmonic crystal enhanced refractive index sensing [PDF]

open access: yesApplied Physics Letters, 2014
We demonstrate experimentally how the local anisotropy of the dispersion relation of surface plasmon modes propagating over periodic metal gratings can lead to an enhancement of the figure of merit of refractive index sensors. Exploiting the possibility to acquire defocused images of the Fourier space of a highly stable leakage radiation microscope, we
Stein, Benedikt   +3 more
openaire   +2 more sources

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

open access: yesFEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas   +6 more
wiley   +1 more source

Unveiling Rabi splitting in a hybrid plasmon–exciton polaritonic system for refractometry [PDF]

open access: yesAPL Electronic Devices
We computationally report strong plasmon–exciton coupling and quantitative Rabi splitting in a hybrid plasmon–exciton polariton platform designed for ultrasensitive refractometric sensing.
Subrat Sahu   +2 more
doaj   +1 more source

A Reconfigurable Terahertz Metamaterial Absorber for Gas Sensing Applications

open access: yesCrystals, 2023
Reconfigurable metamaterials have immense applications in sensing. A refractive index reconfigurable terahertz metamaterial absorber was investigated in this research for gas sensing applications.
Shruti   +5 more
doaj   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Photonic Crystal Fiber SPR Liquid Sensor Based on Elliptical Detective Channel

open access: yesMicromachines, 2021
This paper proposes a Photonic Crystal Fiber (PCF) refractive index sensor model based on the surface plasmon resonance effect. The proposed PCF model also uses the full vector finite element method to transfer the structure under the anisotropic Perfect
Xin Yan   +3 more
doaj   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

open access: yesFEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen   +5 more
wiley   +1 more source

Photonic Crystal Fiber Modal Interferometer for Refractive Index Sensing

open access: yesCommunications, 2013
We present a modification of core-cladding intermodal interferometer for refractive index sensing. Its structure consists of double cladding photonic crystal fiber (PCF) as a sensing element.
Daniel Kacik, Peter Tatar
doaj   +1 more source

Research on D-Shape Open-Loop PCF Temperature Refractive Index Sensor Based on SPR Effect

open access: yesIEEE Photonics Journal, 2022
PCF (Photonic crystal fiber) temperature refractive index sensor based on SPR effect with the new double membrane open-loop structure is proposed. The inner surface of such PCF’s open-loop structure is plated with a layer of 70 nm gold film, and a
Fanlong Meng, Hong Wang, Di Fang
doaj   +1 more source

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