Rabi oscillations of 2D electrons under ultrafast intersubband excitation

TL;DR

This paper studies the coherent nonlinear behavior of two-dimensional electrons under ultrafast mid-infrared pulses, highlighting Rabi oscillations and their detection methods in quantum well systems.

Contribution

It introduces a non-Markovian model including relaxation, dephasing, and detuning effects to analyze Rabi oscillations in 2D electron systems under ultrafast excitation.

Findings

Detection of Rabi oscillations via cross-correlation method

Influence of relaxation and dephasing on oscillation dynamics

Potential for observing coherent control in 2D electron systems

Abstract

We investigate coherent nonlinear dynamics of 2D electrons under ultrafast intersubband excitation by mid-IR pulses. We include the effects of relaxation and dephasing, both homogeneous and inhomogeneous, as well as detuning within a non-Markovian equation to obtain temporal population redistributions. We show how, using a cross-correlation method, the effects of Rabi oscillations may be detected in this system, and briefly discuss other detection methods.