Title :
Group velocity, energy velocity, and superluminal propagation in finite photonic band gap structures
Author :
D´Aguanno, G. ; Centini, M. ; Scalora, M. ; Sibilia, C. ; Bertolotti, M. ; Bloemer, M.J. ; Bowden, C.M. ; Hans, J.W.
Author_Institution :
Dipt. di Energetica, La Sapienza Univ., Rome, Italy
Abstract :
Summary form only given. The concept of group velocity is critical when applied to an absorbing (or gain), homogeneous dielectric material because V/sub g/ may be greater than c, and it can even be negative in some circumstances. We discuss the case in which a 1-D PBG structure displays anomalous effective index behavior, not as a result of gain or absorption, but as a result of scattering.
Keywords :
Helmholtz equations; light propagation; photonic band gap; refractive index; tunnelling; 1D structure; Helmholtz equation; anomalous effective index behavior; boundary conditions; energy velocity; finite photonic band gap structures; group velocity; minimum transmittance; scattering; superluminal propagation; superluminal tunneling; Bonding; Books; Buildings; Missiles; Optical propagation; Optimized production technology; Photonic band gap; Power engineering and energy; Tunneling; Weapons;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.948210
