Abstract
We develop a strategy to reduce large reflection losses from quantum-well Bragg structures through an anti-reflection coating technique. It is based on generalized refractive indices, which we call "effective coupling indices" (ECIs), that can be introduced to describe the coupling of light into quantum-well Bragg structures. For the example of a spectrally narrow band, which is relevant for slow-light applications, we clarify the dependence of the ECIs on the spectral bandwidth and discuss the relation between the ECIs and the group-velocity index. Numerical simulations of reflection spectra demonstrate the effectiveness of the ECI concept.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2013-2022 |
| Number of pages | 10 |
| Journal | Journal of the Optical Society of America B: Optical Physics |
| Volume | 24 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2007 |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics