Strong coupling and polariton lasing in Te based microcavities embedding (Cd,Zn)Te quantum wells
Jean-Guy Rousset, Barbara Pi\k{e}tka, Mateusz Kr\'ol, Rafa{\l} Mirek,, Katarzyna Lekenta, Jacek Szczytko, Jolanta Borysiuk, Jan Suffczynski, Tomasz, Kazimierczuk, Mateusz Goryca, Tomasz Smole\'nski, Piotr Kossacki, Micha{\l}, Nawrocki, and Wojciech Pacuski
TL;DR
This paper demonstrates strong light-matter coupling and polariton lasing in a Te-based microcavity with multiple unstrained quantum wells, highlighting the benefits of lattice matching for enhanced exciton-photon interactions.
Contribution
It introduces a lattice-matched microcavity design with multiple unstrained quantum wells, enabling strong coupling and polariton lasing in Te-based materials.
Findings
Strong light-matter coupling observed with a single quantum well.
Enhanced exciton-photon coupling with four quantum wells.
Achievement of polariton lasing in the strong coupling regime.
Abstract
We report on properties of an optical microcavity based on (Cd,Zn,Mg)Te layers and embedding (Cd,Zn)Te quantum wells. The key point of the structure design is the lattice matching of the whole structure to MgTe, which eliminates the internal strain and allows one to embed an arbitrary number of unstrained quantum wells in the microcavity. We evidence the strong light-matter coupling regime already for the structure containing a single quantum well. Embedding four unstrained quantum wells results in further enhancement of the exciton-photon coupling and the polariton lasing in the strong coupling regime.
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