Principals of the theory of light reflection and absorption by low-dimensional semiconductor objects in quantizing magnetic fields at monochromatic and pulse excitations

TL;DR

This paper develops a comprehensive theoretical framework for light reflection and absorption in low-dimensional semiconductor structures like quantum wells, wires, and dots under magnetic fields and various light pulse conditions.

Contribution

It introduces a general theory accommodating arbitrary quantum well widths, energy levels, and pulse forms, including integral equations similar to Dyson equations for electric fields.

Findings

Derived integral equations for electric field Fourier components.

Solved specific cases demonstrating the theory's application.

Applicable to various low-dimensional semiconductor structures in magnetic fields.

Abstract

The bases of the theory of light reflection and absorption by low-dimensional semiconductor objects (quantum wells, wires and dots) at both monochromatic and pulse irradiations and at any form of light pulses are developed. The semiconductor object may be placed in a stationary quantizing magnetic field. As an example the case of normal light incidence on a quantum well surface is considered. The width of the quantum well may be comparable to the light wave length and number of energy levels of electronic excitations is arbitrary. For Fourier-components of electric fields the integral equation (similar to the Dyson-equation) and solutions of this equation for some individual cases are obtained.