Results 51 to 60 of about 158,783 (289)

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Dispersion-Engineered Step-Index Tellurite Fibers for Mid-Infrared Coherent Supercontinuum Generation from 1.5 to 4.5 μm with Sub-Nanojoule Femtosecond Pump Pulses

open access: yesApplied Sciences, 2018
Mid-infrared supercontinuum generation from 1.5 to 4.5 µm with sub-nanojoule femtosecond pump pulses is demonstrated by using a short segment of dispersion-engineered step-index tellurite fiber with very low OH content.
Paul Froidevaux   +10 more
doaj   +1 more source

Random Lasers for Broadband Directional Emission

open access: yes, 2016
Broadband coherent light sources are becoming increasingly important for sensing and spectroscopic applications, especially in the mid-infrared and terahertz (THz) spectral regions, where the unique absorption characteristics of a whole host of molecules
Andrews, Aaron M.   +9 more
core   +1 more source

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song   +3 more
wiley   +1 more source

2-D Radiative Transfer in Protostellar Envelopes: II. An Evolutionary Sequence

open access: yes, 2003
We present model spectral energy distributions, colors, polarization, and images for an evolutionary sequence of a low-mass protostar from the early collapse stage (Class 0) to the remnant disk stage (Class III).
Augereau J. C.   +7 more
core   +2 more sources

Efficient lateral confinement by an oxide aperture in a mid-infrared GaSb-based vertical light-emitting source [PDF]

open access: yesJournal of Physics D: Applied Physics, 2011
The use of lateral oxidation for electrical and optical confinement on a GaSb-based mid-infrared vertical light-emitting diode is demonstrated in this paper. The metamorphic growth of (Al)GaAs above a tunnel junction grown on the GaSb-based resonant-cavity light-emitting diode enables good structural quality of the As-based layers and oxidation of the ...
Laaroussi, Y   +3 more
openaire   +1 more source

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

open access: yesAdvanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu   +9 more
wiley   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

On-chip mid-infrared dispersive wave generation at targeted molecular absorption wavelengths

open access: yesAPL Photonics
The mid-infrared wavelength region is one of the most important spectral ranges for a variety of applications in monitoring and controlling molecules due to the presence of strong characteristic absorption modes of many molecules.
Seong Cheol Lee   +9 more
doaj   +1 more source

Barium Chalcogenide Crystals: A Review

open access: yesPhotonics
In recent decades, new nonlinear optical materials have been actively developed to create coherent tunable light sources in the mid-infrared (mid-IR) part of the spectrum used in a variety of scientific fields.
Nadezhda Kostyukova   +4 more
doaj   +1 more source

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