[Th-A2-H] Coherence and Collective Excitations

12:00 PM - 12:15 PM JST(3:00 AM - 3:15 AM UTC)

[Th-A2-H-04] Exciton Coherence Propagation Measured with Non-Local Coherent Spectroscopy

〇Mateusz Raczyński¹, Amadeusz Dydniański¹, Karolina Ewa Połczyńska¹, Gabriela Szwed¹, Adam Szczerba¹, Jin-Woo Jung², Gilles Nogues², Piotr Kossacki¹, Wojciech Pacuski¹, Jacek Kasprzak^1,2,3 (1. Inst. of Experimental Physics, Faculty of Physics, Univ. of Warsaw ul. Pasteura 5, 02-093 Warsaw (Poland), 2. Univ. Grenoble Alpes, CNRS, Grenoble INP, Inst. Néel, 38000 Grenoble (France), 3. Japanese-French Lab. for Semiconductor Physics and Technology J-FAST, CNRS, Univ. Grenoble Alpes, Univ. of Tsukuba (Japan))

We present the first realisation of non-local four-wave mixing in a state-of-the-art CdTe/(Cd,Mg)Te quantum well, enabling measurement of the spatio-temporal propagation of exciton density and exciton coherence, whereas only density diffusion is readily accessible with standard pump–probe techniques.