Title :
Active THz metamaterials
Author :
Hara, J. F O ; Chen, H.-T. ; Azad, A.K. ; Simrnova, E. ; Padilla, W.J. ; Averitt, R.D. ; Taylor, A.J.
Author_Institution :
Los Alamos Nat. Lab., Los Alamos, NM
Abstract :
In this work, we demonstrate THz metamaterials exhibiting either amplitude control, via carrier injection or depletion in the active semiconductor substrate or frequency control, via photoexcitation of carriers into active semiconducting materials incorporated into the sub-wavelength metamaterial structure.
Keywords :
metamaterials; photoexcitation; semiconductor materials; submillimetre waves; active THz metamaterials; active semiconductor substrate; amplitude control; carrier injection; frequency control; photoexcitation; Charge carrier lifetime; Frequency; Gallium arsenide; Intensity modulation; Magnetic materials; Metamaterials; Resonance; Semiconductor materials; Substrates; Switches;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665859
