Materials

Tunable Infrared Material System

This technique results in a high-quality, uniform IR sensing material.

The objective of this work was to lay the groundwork for the development of a new tunable II-VI infrared (IR) material system using mature III-V semiconductors as lattice-matched substrates. Mercury cadmium selenide (HgCdSe) was studied as an alternative ...
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Nonlinear Acoustic Metamaterials for Sound Attenuation Applications

Acoustic filter system material could be useful in protecting soldiers against hearing damage from weapons fire, while largely retaining their situational awareness.

An acoustic crystal composed of tightly packed spherical particles can exhibit a wide spectrum of acoustic properties with responses varying from linear to highly nonlinear regimes. ...
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Transparent Ceramics for High-Energy Laser Systems

These ceramics can be used as window and dome material for protecting sensors.

When a high-energy laser (HEL) beam transmits through a window material, a part of the laser energy is absorbed by the material and causes optical aberrations. This absorbed energy results in material heating in the ...
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