Title :
Active control of terahertz optical activity by photo-excitation of metal chiral gratings
Author :
Kanda, N. ; Konishi, K. ; Kuwata-Gonokami, M.
Author_Institution :
Dept. of Appl. Phys., Univ. of Tokyo, Tokyo, Japan
Abstract :
We report pronounced light-induced change of the optical activity at terahertz frequency in metal chiral gratings on semiconductor substrates. This result opens new horizons in the active terahertz polarization control.
Keywords :
diffraction gratings; optical control; optical rotation; photoexcitation; polarimetry; active terahertz polarization control; metal chiral grating; photo-excitation; semiconductor substrates; terahertz optical activity control; Gratings; Metamaterials; Optical control; Optical films; Optical microscopy; Optical polarization; Optical pumping; Optical sensors; Optical surface waves; Substrates; (120.2130) Ellipsometry and polarimetry; (230.3990) Microstructure devices; (240.6680) Surface plasmons; (300.6270) Spectroscopy, far infrared;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
