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Metamaterials are significant because they have characteristics that are not present in basic materials. Because they have some distinctive qualities that are not present in natural materials, all-dielectric metamaterials (MMs) are of interest.
The amounts of dissipation commonly observed in metallic MMs are not present in dielectric media because they are typically low-loss. The main impact enabling MM reflectors, according to a sizable and expanding body of literature, is particle-based Mie resonance.
Modelling of reflectors in two dimensions (2D) and one dimension (1D) with all Mie resonances eliminated. Lattice resonance, which is where MM reflectors function, is dominated by lateral leaky Bloch modes.
One variety of Fano resonance known as guided-mode or leaky-mode resonance is this lattice resonance. Leaky Bloch mode and the traditional Mie resonance technique. Typically, the periodic MM reflectors are cast into an equivalent homogeneous slab, from which the effective material characteristics of impedance are then determined.
The Global Metamaterial Reflector Panels Market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
Solar reflectors made of metamaterials cool down satellites and spacecraft.
New technology has been created by a group of scientists, including those from the University of Southampton in Southampton, England, that could greatly enhance satellite or spacecraft exploration.
Metamaterial Optical Solar Reflectors (meta-OSRs) are the first-surface coatings on the outside of a spacecraft that are intended to successfully reflect the majority of the optical solar spectrum while radiating infrared heat away from the surface.
The OSRs are essential to the thermal control of a satellite or spacecraft. OSRs are intended to reject solar radiation and dissipate the heat produced on board.
They are glued to the exterior skin of the radiator panels. Quartz tiles, which have both thermo-optical and environmental resistance, are frequently used to create OSRs. Quartz tiles can’t be used on curved surfaces, are unnecessarily expensive to install, and are heavy and fragile.
The team showed that the use of metal oxide, a substance frequently used for transparent electrical contacts, which in this case is patterned into a metamaterial with very strong infrared emissivity while maintaining a low absorption of the solar spectrum, enables a new meta-OSR coating.
On the basis of their metamaterial design, the team also demonstrated a “smart” radiator that enables fine-tuning of the spacecraft’s radiative cooling using a different type of metal oxide.
