Metamaterials and their THz applications


Conference Paper

We present experimental results of metamaterials operating at terahertz and mm-wave frequencies. Metamaterials consist of a single layer of 200nm thick gold on a doped or undoped semiconducting substrate. By optical and electronic doping of supporting semiconducting substrates we show external control of planar arrays of metamaterials, characterized with terahertz time domain spectroscopy. Both methods yield metamaterial / semiconductor devices which can be utilized as switches or modulators, enabling modulation of THz Transmission by 50 percent. Experiments are supported by simulations and results agree well. Because of the universality of metamaterial response over many decades of frequency, these results have implications for other regions of the electromagnetic spectrum and will undoubtedly play a key role in future demonstrations of novel high-performance devices.

Full Text

Duke Authors

Cited Authors

  • Landy, NI; Chen, HT; Zide, JMO; Gossard, AC; Highstrete, C; Lee, M; O'Hara, JF; Taylor, AJ; Averitt, RD; Padilla, WJ

Published Date

  • January 1, 2007

Published In

  • Irmmw Thz2007 Conference Digest of the Joint 32nd International Conference on Infrared and Millimetre Waves, and 15th International Conference on Terahertz Electronics

Start / End Page

  • 30 - 33

International Standard Book Number 10 (ISBN-10)

  • 1424414385

International Standard Book Number 13 (ISBN-13)

  • 9781424414383

Digital Object Identifier (DOI)

  • 10.1109/icimw.2007.4516383

Citation Source

  • Scopus