Results 21 to 30 of about 24,164 (268)

A Review: Evolution and Diversity of Optical Fibre Plasmonic Sensors

open access: yesSensors, 2019
The purpose of this review is to bring to the attention of the wider research community how two quite different optical sensory techniques were integrated resulting in a sensor device of exceptional sensitivity with wide ranging capability.
Thomas Allsop, Ron Neal
doaj   +1 more source

Additively-Manufactured All-Dielectric Microwave Polarization Converters Using Ceramic Stereolithography

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
We report a class of all-dielectric, additively-manufactured polarization converters with tailored temporal frequency responses within the Ku and Ka microwave bands (15– 40 GHz).
Steve M. Young   +3 more
doaj   +1 more source

Generation of Color Images by Utilizing a Single Composite Diffractive Optical Element

open access: yesMicromachines, 2018
This paper presents an approach that is capable of producing a color image using a single composite diffractive optical element (CDOE). In this approach, the imaging function of a DOE and the spectral deflection characteristics of a grating were combined
Jiazhou Wang   +8 more
doaj   +1 more source

HKUST-1-Doped High-Resolution Volume Holographic Gratings

open access: yesChemosensors, 2022
We report on transmission holographic gratings doped with metal organic frameworks (MOFs). As a first attempt, we focused on MOF-199, also known as HKUST-1, which is an efficient adsorbent of VOCs.
Riccardo Castagna   +5 more
doaj   +1 more source

RETRACTED: Hu, H.; Bayanheshig. Exploration of a Flexible Metasurface for Strain Sensors: A Perspective from 2D Grating Fabrication to Spectral Characterization. Appl. Sci. 2022, 12, 10007

open access: yesApplied Sciences
The journal retracts and remove the article “Exploration of a Flexible Metasurface for Strain Sensors: A Perspective from 2D Grating Fabrication to Spectral Characterization” [...]
Hao Hu, Bayanheshig
doaj   +1 more source

Dual-Wavelength Spectroscopy of a Metallic-Grating-Coupled Surface Plasmon Resonance Biosensor

open access: yesIEEE Photonics Journal, 2015
A novel approach is proposed to decouple the surface and bulk effects in surface plasmon resonance (SPR) biosensors. This method is based on a metallic-grating-based SPR in which a sensor is efficiently optimized to excite three surface plasmon waves at ...
Farshid Bahrami   +2 more
doaj   +1 more source

Rapid and Highly Sensitive Detection of C-Reaction Protein Using Robust Self-Compensated Guided-Mode Resonance BioSensing System for Point-of-Care Applications

open access: yesBiosensors, 2021
The rapid and sensitive detection of human C-reactive protein (CRP) in a point-of-care (POC) may be conducive to the early diagnosis of various diseases.
Chu-Tung Yeh   +5 more
doaj   +1 more source

Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI

open access: yesIEEE Photonics Journal, 2010
We describe the design, fabrication, and characterization of high-reflectivity broadband mirrors operating in the near-infrared (700-1000 nm) wavelength range.
Armando Ricciardi   +4 more
doaj   +1 more source

Broadband spectropolarimeter based on spatial heterodyne spectroscopy and channeled polarimetric technique

open access: yesResults in Physics
A spectropolarimeter based on spatial heterodyne spectroscopy and the channeled polarimetric technique (SSHSCP) is introduced. The SSHSCP uses a polarization grating for channel modulation, meaning that the Stokes parameter is no longer dependent on the ...
Jun Chen   +7 more
doaj   +1 more source

Protein Binding Detection Using On-Chip Silicon Gratings

open access: yesSensors, 2011
We demonstrate a silicon gratings-based biosensor to detect functionalized protein binding on its surface. The designed silicon gratings have sensitivities up to 197 nm/RIU in detecting refractive index change and 1.61 nm per nanometer of thickness ...
Jayshri Sabarinathan   +1 more
doaj   +1 more source

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