Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves
Journal Article (Journal Article)
We demonstrate fast electrical modulation of freely propagating terahertz waves at room temperature using hybrid metamaterial devices. The devices are planar metamaterials fabricated on doped semiconductor epitaxial layers, which form hybrid metamaterial-Schottky diode structures. With an applied ac voltage bias, we show modulation of terahertz radiation at inferred frequencies over 2 MHz. The modulation speed is limited by the device depletion capacitance which may be reduced for even faster operation. © 2008 American Institute of Physics.
Full Text
Duke Authors
Cited Authors
- Chen, HT; Palit, S; Tyler, T; Bingham, CM; Zide, JMO; O'Hara, JF; Smith, DR; Gossard, AC; Averitt, RD; Padilla, WJ; Jokerst, NM; Taylor, AJ
Published Date
- September 15, 2008
Published In
Volume / Issue
- 93 / 9
International Standard Serial Number (ISSN)
- 0003-6951
Digital Object Identifier (DOI)
- 10.1063/1.2978071
Citation Source
- Scopus