Nonlinear multi-photon and harmonics generation spectroscopy on ZnO-based nanostructures (B01)

• Subject Area: Experimental Condensed Matter Physics
• Term: from 2014 to 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 231447078

This project addresses the enhancement of nonlinear processes such as second and third harmonic generation as well as two- and three-photon absorption due to exciton effects. Due to the strong Coulomb interaction, ZnO is in the main focus in the project which exhibits both strong nonlinear material constants and exciton binding energy. In this project, high-quality low-dimensional quantum systems based on ZnO are fabricated using molecular beam epitaxy. Novel spectroscopic methods are developed in order to investigate the nonlinear effects and the influence of external fields and symmetry-breaking.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 142: Tailored nonlinear photonics: From fundamental concepts to functional structures
• Applicant Institution: Universität Paderborn
• Project Heads: Professor Dr. Cedrik Meier; Dr. Eva Rauls, until 6/2017; Professor Dr. Wolf Gero Schmidt, from 7/2017 until 12/2017; Professor Dmitri Yakovlev, Ph.D.