Flexible manipulation of quantum dot excitons by strongly non-paraxial optical vortices

M. HOLTKEMPER; G. F. QUINTEIRO; D. E. REITER; P. I. TAMBORENEA; KUHN, T.

Nara

Conferencia; EDISON2019; 2019

Optical vortices (OV) are electromagnetic fields with complex amplitude and phase structure. They present surprising properties such as points where the phase cannot be defined (phase singularities), orbital angular momentum (AM) in the direction of propagation, and more. When interacting with matter, in particular with a semiconductor nanostructure, the peculiar properties of the OV can be used to excite unusual transitions. In this contribution we will discuss different kinds of OV and analyze their capability of controlling the exciton state in a semiconductor quantum dot (QD).