Title :
Optically controllable photonic crystals used as THz modulators
Author :
Fekete, Ladislav ; Kadlec, Filip ; Nemec, H. ; Kuzel, P.
Author_Institution :
Inst. of Phys., Acad. of Sci. of the Czech Republic, Prague
Abstract :
We demonstrate a concept of one-dimensional photonic crystals acting as modulators of terahertz radiation with an optical control. The devices are made from dielectric platelets and a semiconducting defect which leads to a defect level in the forbidden band gap. The transmittance at the defect level can then be controlled by photoexcitation of the semiconductor.
Keywords :
dielectric devices; optical control; optical modulation; photoexcitation; photonic crystals; submillimetre wave devices; THz modulators; dielectric platelets; optical control; photonic crystals; semiconducting defect; semiconductor photoexcitation; terahertz radiation; Gallium arsenide; Optical control; Optical filters; Optical modulation; Optical pumping; Optical surface waves; Photonic crystals; Pulse amplifiers; Resonance; Time domain analysis;
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
DOI :
10.1109/ICIMW.2007.4516818
