Paul Dichtl,Ibrahim Abdelwahab,Gustavo Grinblat,Kai Leng,Xiao Chi,In‐Hyeok Park,Michael P. Nielsen,Rupert F. Oulton,Kian Ping Loh,Stefan A. Maier
出处
期刊:Frontiers in Optics + Laser Science APS/DLS日期:2019-01-01卷期号:: FTu5F.3-FTu5F.3被引量:1
标识
DOI:10.1364/fio.2019.ftu5f.3
摘要
2D Ruddlesden-Popper-type lead halide perovskites exhibit a strong third-order nonlinear response around excitonic resonance, which is characterized with Z-scan measurements. We find large absolute values and a sign change of both nonlinear refraction and absorption.