Results 31 to 40 of about 247,892 (261)
A Review: Evolution and Diversity of Optical Fibre Plasmonic Sensors
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
Dynamic Control of Light Direction Enabled by Stimuli‐Responsive Liquid Crystal Gratings
The ability to control light direction with tailored precision via facile means is long‐desired in science and industry. With the advances in optics, a periodic structure called diffraction grating gains prominence and renders a more flexible control ...
R. Zola +5 more
semanticscholar +1 more source
Transmission Resonances on Metallic Gratings with Very Narrow Slits [PDF]
For decades, it has been thought that subwavelength apertures have a very low transmission efficiency of light [1]. However, very recently, several experiments have shown that, if holes are structured forming a 2D periodic array in a metallic film ...
J. Porto +3 more
semanticscholar +1 more source
Generation of Color Images by Utilizing a Single Composite Diffractive Optical Element
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
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Tunable near-infrared sources are highly demanded due to their various applications in biomedicine, printing, barcode technology, and optical storage. In this paper, widely central phase-matching wavelength tunable and high efficiency are demonstrated in
Wen Liu, Shuanggen Zhang, Jinlei Liu
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Rapidly reconfigurable optical phase encoder-decoders based on fiber Bragg gratings [PDF]
We demonstrate the capacity for fast dynamic reconfiguration of optical code-division multiple access (OCDMA) phase en/decoders based on fiber Bragg gratings and a thermal phase-tuning technique.
Mokhtar, M.R. +5 more
core +1 more source
Biosensing with optical fiber gratings
Optical fiber gratings (OFGs), especially long-period gratings (LPGs) and etched or tilted fiber Bragg gratings (FBGs), are playing an increasing role in the chemical and biochemical sensing based on the measurement of a surface refractive index (RI ...
F. Chiavaioli +4 more
semanticscholar +1 more source
Study of the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals [PDF]
Local and nonlocal models for the diffusion of photopolymers are applied to the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals (H-PDLCs). We retrieve the main parameters of H-PDLCs (
Kaiser, Jean-Luc +5 more
core +1 more source
Single-Shot Phase-Contrast Imaging with a Single Grating
In the field of X-ray phase-contrast imaging, a time-saving approach and preservation of details are crucial factors for obtaining phase-contrast images.
Xin Liu +4 more
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Dual-Wavelength Spectroscopy of a Metallic-Grating-Coupled Surface Plasmon Resonance Biosensor
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
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