Results 11 to 20 of about 46,382 (297)

Research progress on spectrally selective radiation infrared stealth materials

open access: yesJournal of Aeronautical Materials, 2021
The continuously developing infrared detection technology and precise guidance technology pose an increasingly serious threat to the survival and penetration of missiles, hypersonic aircraft and other weapons and equipment.
WANG Xinfei   +3 more
doaj   +1 more source

Infrared and Terahertz Compatible Absorber Based on Multilayer Film

open access: yesFrontiers in Physics, 2021
In this paper, a similar Fabry-Perot cavity structure utilizing a multilayer film structure consisting of an ultrathin metal film is demonstrated for absorbing the infrared ray. This structure has low emissivity in the atmospheric window (3–5 and 8–14 μm)
Mingyang Yang   +6 more
doaj   +1 more source

Rapid-Response Low Infrared Emission Broadband Ultrathin Plasmonic Light Absorber [PDF]

open access: yesScientific Reports, 2014
Plasmonic nanostructures can significantly advance broadband visible-light absorption, with absorber thicknesses in the sub-wavelength regime, much thinner than conventional broadband coatings. Such absorbers have inherently very small heat capacity, hence a very rapid response time, and high light power-to-temperature sensitivity.
Tagliabue, Giulia   +2 more
openaire   +3 more sources

Effect of High Temperature Oxidation on Infrared Irradiation of Stainless Steel 304

open access: yesXibei Gongye Daxue Xuebao, 2020
The effect of 304 stainless steel oxidation at 800℃ for 0.5, 2, 10, 25, 100 and 200 h, respectively, on its weight gain, surface microphotograph, composition, and infrared emissivity were investigated in the paper.

doaj   +1 more source

Research on the normal emissivity of graphite between 150 and 500 °C by an infrared camera for nuclear fusion devices

open access: yesNuclear Materials and Energy, 2022
Due to the advantages of high-temperature resistance, low thermal expansion coefficient, and thermal shock resistance, etc., graphite is regarded as one of the materials for the first wall of nuclear fusion devices.
Shuangbao Shu   +5 more
doaj   +1 more source

Optimization of thermochromic VO2 based structures with tunable thermal emissivity [PDF]

open access: yes, 2012
In this paper, we design and simulate VO2/metal multilayers to obtain a large tunability of the thermal emissivity of infrared (IR) filters in the typical mid wave IR window of many infrared cameras. The multilayer structure is optimized to realise a low
Concetta Sibilia   +4 more
core   +2 more sources

The Nuclear Infrared Emission of Low-Luminosity AGN

open access: yesJournal of Physics: Conference Series, 2012
We have obtained high-resolution mid-infrared (MIR) imaging, nuclear spectral energy distributions (SEDs) and archival Spitzer spectra for 22 low-luminosity active galactic nuclei (LLAGN; L_bol < 5 x 10^42 erg/s). Infrared (IR) observations may advance our understanding of the accretion flows in LLAGN, the fate of the obscuring torus at low ...
Mason, R   +11 more
openaire   +2 more sources

THE NUCLEAR INFRARED EMISSION OF LOW-LUMINOSITY ACTIVE GALACTIC NUCLEI

open access: yesThe Astronomical Journal, 2012
Accepted for publication in ...
Mason, R   +11 more
openaire   +5 more sources

Broadband surface wave coupler with low infrared emission and microwave reflection

open access: yesOptics Express, 2021
Metasurfaces possess excellent capabilities to flexibly manipulate electromagnetic waves in multiple frequency domains, which show great potential application in multispectral stealth. Herein, a broadband surface waves coupler based on the design of thin Pancharatnam–Berry (PB) phase gradient metasurfaces (PGMs) of thickness 0.12λ0 is proposed to ...
Tonghao Liu   +8 more
openaire   +2 more sources

Fabrication of low emissivity paint for thermal/NIR radiation insulation for domestic applications

open access: yesEnergy Reports, 2022
Recently, low-emissivity paint has gained more importance than commercial paints. Low emissivity (Low-E) Paint also termed as a coating for radiation control, in which the emissivity of radiations of longer waves are reduced dramatically (i.e., the ...
H.M. Fayzan Shakir   +5 more
doaj   +1 more source

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