Title :
Superluminal Tunneling and Negative Group Delay in Layered Bragg Structures
Author_Institution :
Dnipropetrovsk Nat. Univ.
Abstract :
Bragg structures with distortion of periodicity are considered. Effects of wave scattering are theoretically investigated in wide frequency band. Methods of characteristic matrices and Fourier wave decomposition are used for obtaining frequency and time dependencies of reflected and transmitted wave pulses. Magnitudes and phases of scattered fields are analyzed. Phenomena of anomalous behavior of group delay (superluminal and negative ones) are observed for Bragg structures with different type of distortions
Keywords :
Fourier transforms; electromagnetic pulse; electromagnetic wave reflection; electromagnetic wave scattering; electromagnetic wave transmission; matrix decomposition; periodic structures; Fourier wave decomposition; characteristic matrix; layered Bragg structure; negative group delay; periodicity distortion; superluminal tunneling; wave pulse reflection; wave pulse transmission; wave scattering; Frequency; Light scattering; Magnetic films; Optical reflection; Permeability; Permittivity; Propagation delay; Pulse shaping methods; Shape; Tunneling;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, Proceedings of XIth International Seminar/Workshop on
Conference_Location :
Tbilisi, Georgia
Print_ISBN :
966-02-3873-8
DOI :
10.1109/DIPED.2006.314291
