Active Polarization Modulation of Terahertz Radiation Using Metamaterial/Graphene-Based Optoelectronic Devices
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Published version
Embargoed until: 5555-01-01
Embargoed until: 5555-01-01
Volume
2022-August
DOI
10.1109/IRMMW-THz50927.2022.9895720
ISSN
2162-2027
Metadata
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We investigate the modulation performance of a metamaterial/graphene optoelectronic device in the THz range. Operating characteristics such as amplitude, phase and polarization modulations of broadband THz radiation are reported. The accomplishments of modulation depth include >75% in spectral amplitude, > 15° in spectral phase, > 0.2 active modulation of ellipticity ratio, and active rotational angle changes of 20°. These achievements are the key elements towards efficient manipulations of THz radiation for applications such as next-generation wireless communications, spectroscopy, and imaging.