metasurface for THz polarization modulation (IMAGE)

Rice University

metasurface for THz polarization modulation

Caption

A pictorial schematic depicts the structure and action of a nanopatterned plasmonic metasurface that modulates polarized light at terahertz frequencies. An ultrashort laser pulse (green) excites cross-shaped plasmonic structures, which rotate the polarity of a second light pulse (white) that arrives less one picosecond after the first.

Credit

Image courtesy of A. Assié

Usage Restrictions

Must credit: "Courtesy of A. Assié"

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.