Presentation Information
[Th-P-83]Interaction between Rydberg Excitons in Cuprous Oxide Revealed through Resonant Second Harmonic Generation
〇Henije Stolz1, Andreas Farenbruch2, Dirk Semkat2, Peter Grünwald1, Dmitri Yakovlev2,3, Manfred Bayer2 (1. Univ. of Rostock (Germany), 2. Tech. Univ. of Dortmund (Germany), 3. Ioffe Inst. (Russia))
We report resonant second harmonic spectra of yellow excitons in cuprous oxide with principal quantum numbers up to n=7 showing systematic changes with increasing pump power. Using Maxwell-Bloch theory we identify the exciton-exciton interaction as origin and derive the interaction strength.