DocumentCode :
3385519
Title :
Metamaterials and their THz applications
Author :
Landy, Nathan I. ; Chen, Hou-Tong ; Zide, Joshua M O ; Gossard, Arthur C. ; Highstrete, Clark ; Lee, M. ; O´Hara, J.F. ; Taylor, Antoinette J. ; Averitt, R.D. ; Padilla, Willie J.
Author_Institution :
Dept. of Phys., Boston Coll., Chestnut Hill, MA
fYear :
2007
fDate :
2-9 Sept. 2007
Firstpage :
30
Lastpage :
33
Abstract :
We present experimental results of metamaterials operating at terahertz and mm-wave frequencies. Metamaterials consist of a single layer of 200 nm 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 meta-material / 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.
Keywords :
metamaterials; optical materials; submillimetre wave spectroscopy; substrates; THz applications; electromagnetic spectrum; metamaterials; mm-wave frequencies; planar arrays; semiconducting substrates; terahertz frequencies; terahertz time domain spectroscopy; undoped semiconducting substrate; Frequency; Gold; Metamaterials; Optical control; Optical modulation; Planar arrays; Semiconductivity; Semiconductor device doping; Spectroscopy; Substrates; Metamaterials; Optoelectronic; Terahertz; millimeter wave;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
Type :
conf
DOI :
10.1109/ICIMW.2007.4516383
Filename :
4516383
Link To Document :
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