Results 31 to 40 of about 53,139 (255)
Air temperature drives the evolution of mid-infrared optical properties of butterfly wings
Scientific Reports, 2021 This study uncovers a correlation between the mid-infrared emissivity of butterfly wings and the average air temperature of their habitats across the world.
Anirudh Krishna +3 more
doaj +1 more source
Single-shot mid-infrared incoherent holography using Lucy-Richardson-Rosen algorithm
Opto-Electronic Science, 2022 In recent years, there has been a significant transformation in the field of incoherent imaging with new possibilities of compressing three-dimensional (3D) information into a two-dimensional intensity distribution without two-beam interference (TBI ...
Vijayakumar Anand +9 more
doaj +1 more source
Mid-infrared single-photon counting
Optics Letters, 2006 We report a procedure to detect mid-infrared single photons at 4.65 um via a two-stage scheme based on Sum Frequency Generation, using a Periodically Poled Lithium Niobate (PPLN) nonlinear crystal and a Silicon Avalanche Photodiode. An experimental investigation shows that, in addition to a high timing resolution, this technique yields a detection ...
Temporao, Guilherme +6 more
openaire +5 more sources
Scientific ReportsA chemical discrimination system based on photonic reservoir computing is demonstrated experimentally for the first time. The system is inspired by the way humans perceive and process visual sensory information.
Gleb Anufriev +4 more
doaj +1 more source
Sensors, 2023 Mid-infrared optics require optical coatings composed of high- and low-refractive-index dielectric layers for the design of optical mirrors, filters, and anti-reflection coatings.
Taeyoon Jeon +5 more
doaj +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Double-Peaked Mid-Infrared Generation Based on Intracavity Difference Frequency Generation
Applied Sciences, 2022 It was reported that a double-peaked mid-infrared laser was generated based on an intracavity difference frequency generation (DFG). The double-peaked pump source was achieved by suppressing the intensity at the central wavelength of the pump source. The
Kaifeng Wang +6 more
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Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen +6 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali +5 more
wiley +1 more source
Quantitative Mid‐Infrared Plasmonic Biosensing on Scalable Graphene Nanostructures
Advanced Materials Interfaces, 2023 Graphene nanostructures, exhibiting tunable and nanoscale‐confined mid‐infrared (mid‐IR) plasmons, prevail as a powerful spectroscopic platform for novel surface‐enhanced molecular identification.
Nestor Jr. Bareza +9 more
doaj +1 more source