2008/03/07 by F.J. Rodríguez, F. J. Rodriguez, Luis Quiroga +8 · 1 citation
Engineering · Physics and Astronomy · #Plasmonic and Surface Plasmon Research #Strong Light-Matter Interactions #Thermal Radiation and Cooling Technologies #cond-mat.mes-hall #cond-mat.other
paper · pdf · doi:10.1103/physrevb.78.035312
published as Phys. Rev. B 78, 035312 (2008) · 8 pages, 5 figures
arxiv created 2008/03/07 · openalex publication_date 2008/07/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report on time-resolved photoluminescence from semiconductor microcavities showing that an optically controllable mechanism exists to turn on and off memory effects in a polariton system. By increasing the laser pumping pulse intensity resonantly exciting the upper polariton branch, we observe revivals of the decaying time-resolved photoluminescence signal, a manifestly non-Markovian behavior of the optically active lower branch polaritons. Based on an open quantum system approach we perform a comprehensive analytical and numerical study of the optically active polaritons to confirm the origin of the observed features. Our findings show that negative detunings and strong excitation should occur simultaneously for memory effects to take place.