Arbitrary vector beam generation in semiconductor quantum dots

Autor:	Hazra, Samit Kumar, Pathak, P. K., Dey, Tarak Nath
Rok vydání:	2024
Předmět:	Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Physics - Optics
Druh dokumentu:	Working Paper
Popis:	We have proposed an arbitrary vector beam (VB) generation scheme in a thin disk-shaped quantum dot (QD) medium considering phonon interaction. The QD biexciton system exhibits interplay between first and third-order nonlinear susceptibility between two orthogonal circular polarisation transitions. Three QD transitions are coupled with one applied weak and two strong control orbital angular momentum (OAM) carrying fields. Therefore, the applied field experiences absorption, and a new field with the desired OAM is generated via four-wave mixing (FWM). These two orthogonal field superpositions produce VB at the QD medium end. We have also demonstrated the polarization rotation of a VB by changing only the relative control field phase. Additionally, we have analyzed the effect of temperature on the VB generation. Comment: 10 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2407.05756 Zobrazit plný text záznamu View this record from Arxiv