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Recently, mercury cadmium telluride (HgCdTe) films have been extensively studied for the metamaterial applications. Crystalline HgCdTe (c-HgCdTe) films attracted people’s attention for the spectral detection when used as metasurfaces and demonstrated reduced volume size, increased operating temperature, and improved quantum efficiency. Amorphous HgCdTe (a-HgCdTe) films also have been studied due to...
Over the decades, Mercury Cadmium Telluride (HgCdTe) has been widely used as a detecting material in conventional IR photodetectors. While HgCdTe material properties have been well understood to use for the semiconductor structures, they have not yet been extensively exploited for the use in metasurfaces, i.e., by engineering the dispersion of surface plasmon in metasurfaces, the incident electromagnetic...
Beam steering has been traditionally achieved by mechanical means. Even though these mechanical techniques have evolved over the past few decades, non-mechanical approaches, due to benefits such as increased speed, lower costs and reduced complexity, have gained considerable interest. In this work, we propose a non-mechanical beam steering of terahertz radiation method using a transient, or dynamic...
An integrated polarimetric detector using a polarization-dependent light sorting metamaterial grating is proposed and its theoretical principles of operation are discussed. This polarimeter implements a metamaterial grating in a focal plane array situated atop of a gallium arsenide substrate. The metamaterial serves three purposes in this design. The first function of the metamaterial is to split...
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