Tight-binding description of the coupled defect modes in three-dimensional photonic crystals
We have experimentally observed the eigenmode splitting due to coupling of the evanescent defect modes in three-dimensional photonic crystals. The splitting was well explained with a theory based on the classical wave analog of the tight-binding (TB) formalism in solid state physics. The experimenta...
Saved in:
| Published in | Physical review letters Vol. 84; no. 10; p. 2140 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
06.03.2000
|
| Online Access | Get more information |
Cover
Loading…
| Summary: | We have experimentally observed the eigenmode splitting due to coupling of the evanescent defect modes in three-dimensional photonic crystals. The splitting was well explained with a theory based on the classical wave analog of the tight-binding (TB) formalism in solid state physics. The experimental results were used to extract the TB parameters. A new type of waveguiding in a photonic crystal was demonstrated experimentally. A complete transmission was achieved throughout the entire waveguiding band. We have also obtained the dispersion relation for the waveguiding band of the coupled periodic defects from the transmission-phase measurements and from the TB calculations. |
|---|---|
| ISSN: | 1079-7114 |
| DOI: | 10.1103/physrevlett.84.2140 |