All-optical control of excitons in semiconductor quantum wells

J Phys Condens Matter. 2022 Mar 10;34(20). doi: 10.1088/1361-648X/ac5864.

Abstract

Applying the Floquet theory, we developed the method to control excitonic properties of semiconductor quantum wells (QWs) by a high-frequency electromagnetic field. It is demonstrated, particularly, that the field induces the blue shift of exciton emission from the QWs and narrows width of the corresponding spectral line. As a consequence, the field strongly modifies optical properties of the QWs and, therefore, can be used to tune characteristics of the optoelectronic devices based on them.

Keywords: Floquet theory; excitons; quantum wells.