Graduate School in Nonlinear Science

Sponsored by The Danish ResearchAgency

 
MIDIT                              OFD                          CATS
Modelling, Nonlinear Dynamics      Optics and Fluid Dynamics    Chaos and Turbulence Studies
and Irreversible Thermodynamics    Risø National Laboratory     Niels Bohr Institute and
Technical University of Denmark    Building 128                 Department of Chemistry
Building 321                       P.O. Box 49                  University of Copenhagen
DK-2800 Lyngby                     DK-4000 Roskilde             DK-2100 Copenhagen Ø
Denmark                            Denmark                      Denmark

PHOTONIC CRYSTALS: A REVIEW

by Steffen Kjær Johansen
Informatics and Mathematical Modelling (IMM)
Technical University of Denmark
Building 321
2800 Kgs. Lyngby, Denmark

MIDIT-seminar 509

Friday, June 07, 2002, 11.00 h
at IMM, Bldg. 305, Room 053, DTU

Abstract: Photonic crystals are the optical analogues of semiconductors in the electronics industry. Rather than a microscopic periodic lattice of atoms which modifies the behaviour of electrons, photonic crystals possess a macroscopic periodic dielectric constant which modifies the properties of light. Just as electrons having energies in the forbidden semiconductor band gap cannot propagate, photonic crystals exhibit a frequency regime, the photonic band gap, over which the propagation of light is strictly forbidden. In the talk I shall introduce the basic concepts and the (linear) theory describing electromagnetic wave propagation in photonic crystals.

J.D. Joannopoulos, R.D. Meade, J.N. Winn, Photonic Crystals. (Princeton University Press, Princeton, New Jersey, 1995)