Exciton-Trion Coherent Interactions in a CdTe/CdMgTe Quantum Well

Autor: Moody, G., Akimov, I. A., Li, H., Singh, R., Yakovlev, D. R., Karczewski, G., Wiater, M., Wojtowicz, T., Bayer, M., Cundiff, S. T.
Rok vydání: 2013
Předmět:
Zdroj: Phys. Rev. Lett. 112, 097401 (2014)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.112.097401
Popis: We present a collection of zero-, one- and two-quantum two-dimensional coherent spectra of excitons and trions in a CdTe/(Cd,Mg)Te quantum well. The set of spectra provides a unique and comprehensive picture of the exciton and trion nonlinear optical response. Exciton-exciton and exciton-trion coherent coupling is manifest as distinct peaks in the spectra, whereas signatures of trion-trion interactions are absent. Excellent agreement using density matrix calculations is obtained, which highlights the essential role of many-body effects on coherent interactions in the quantum well.
Databáze: arXiv