Title :
Thermally tunable filter for terahertz range based on defect mode in one-dimensional photonic crystal
Author :
H. Nemec;L. Duvillaret;F. Garet;P. Kuzel
Author_Institution :
Lab. d´Hyperfrequences et de Caracterisation, Savoie Univ., Le Bourget du Lac, France
fDate :
6/26/1905 12:00:00 AM
Abstract :
We demonstrate a highly tunable (up to 20%) spectral filter for the terahertz range. The filter is based on a defect mode caused by inserting a defect layer into an otherwise periodic one-dimensional photonic crystal. The high tunability of a narrow transmission band (defect mode) originates from a strong temperature dependence of the permittivity of incipient ferroelectric (KTaO/sub 3/) acting as the defect.
Keywords :
"Submillimeter wave filters","Photonic crystals","Optical filters","Personal communication networks","Ferroelectric materials","Frequency","Optical sensors","Temperature dependence","Permittivity","Spectroscopy"
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1421974
