Coherent versus incoherent dynamics in InAs quantum-dot active wave guides
Journal
Journal of Applied Physics
Journal Volume
89
Journal Issue
11 I
Pages
6542-6544
Date Issued
2001
Author(s)
Abstract
Coherent dynamics measured by time-resolved four-wave mixing is compared to incoherent population dynamics measured by differential transmission spectroscopy on the ground-state transition at room temperature of two types of InAs-based quantum dots with different confinement energies. The measurements are performed with heterodyne detection on quantum-dot active wave guides to enhance the light–matter interaction length. An elastic nature of the measured dephasing is revealed which is independent of the dot energy level scheme.
SDGs
Type
journal article