Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves
By Houtong Chen, S. Palit, T. Tyler, C. Bingham, J. Zide, John F. O'Hara, David R. Smith, Arthur C. Gossard, R. Averitt, Willie J Padilla and 2 more. 2008
148 citations recorded by the source corpus.
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 2MHz. The modulation speed is limited by the device depletion capacitance which may be reduced for even faster operation.
Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/0a5946f21a67d618a6739b86da133a9d284d000c
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Electrical and Electronic Engineering
- Withawat Withayachumnankul
- Houtong Chen
- Derek Abbott
- A. Taylor
- Willie J Padilla
- Xin Zhang
- H. Tao
- R. Averitt
In Electronic, Optical and Magnetic Materials
- Houtong Chen
- A. Taylor
- Derek Abbott
- Withawat Withayachumnankul
- Willie J Padilla
- R. Averitt
- Xin Zhang
- H. Tao
Citations in the corpus
- Recent Progress in Electromagnetic Metamaterial Devices for Terahertz Applications (2011, background): “layout design enabled modulation at over 2 MHz [101].”
- A metamaterial solid-state terahertz phase modulator (2009, background): “Room-temperature, voltage-controlled metamaterial devices consisting of a single unit cell layer in the propagation direction have also been shown and are of particular interest her”
- Metamaterials in the Terahertz Regime (2009, background): “An improved version with a reduction in the RC time constant through layout redesigning is able to modulate terahertz waves at over 2 MHz [ 106 ].”