Title :
Experimental observation of superluminal group velocities in bulk two-dimensional photonic bandgap crystals
Author :
Solli, D.R. ; McCormick, C.F. ; Chiao, R.Y. ; Hickmann, J.M.
Author_Institution :
Dept. of Phys., Univ. of California, Berkeley, CA, USA
Abstract :
The authors have experimentally observed superluminal, negative, and infinite group velocities in bulk hexagonal two-dimensional photonic bandgap crystals with bandgaps in the microwave region. The group velocities depend on the polarization of the incident radiation and the air-filling fraction of the crystal.
Keywords :
electromagnetic wave polarisation; light velocity; microwave photonics; microwave propagation; photonic band gap; photonic crystals; air-filling fraction; bulk hexagonal two-dimensional photonic bandgap crystals; incident radiation polarization; infinite group velocities; microwave region; negative group velocities; superluminal group velocities; Bandwidth; Dielectrics; Microwave propagation; Optical distortion; Optical propagation; Optical pulses; Periodic structures; Photonic band gap; Photonic crystals; Physics;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2002.807966
