Photonic devices having degenerate spectral band edges and methods of using the same
US7881570B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2006 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Dec 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0229
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided herein are photonic devices configured to display photonic band gap structure with a degenerate band edge. Electromagnetic radiation incident upon these photonic devices can be converted into a frozen mode characterized by a significantly increased amplitude, as compared to that of the incident wave. The device can also be configured as a resonance cavity with a giant transmission band edge resonance. In an exemplary embodiment, the photonic device is a periodic layered structure with each unit cell comprising at least two anisotropic layers with misaligned anisotropy. The degenerate band edge at given frequency can be achieved by proper choice of the layers' thicknesses and the misalignment angle. In another embodiment, the photonic device is configured as a waveguide periodically modulated along its axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.