Abstract
InGaAs/AlGaAs V-groove quantum-wire (QWR) arrays were fabricated by holographic lithography and one-time metalorganic chemical vapour deposition (MOCVD) to evaluate gain-coupled distributed-feedback (GC-DFB) effects in the InGaAs/AlGaAs materials. Using a finite-element method (FEM), mode analysis of the actual cross-sectional structure verified the modal gain of the QWR DFB structure, in which the gain was identified by a single peak at the Bragg wavelength of the grating. In addition, we observed a large gain anisotropy due to the gain/loss coupling in the DFB structure at a wavelength of 914 nm in the emission spectra from the 430 nm pitch QWR grating at room temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 758-762 |
| Number of pages | 5 |
| Journal | Nanotechnology |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2006 Feb 14 |
ASJC Scopus subject areas
- Bioengineering
- General Chemistry
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering