TRR 142 - Nonlinear multi-photon and harmonics generation spectroscopy on ZnO-based nanostructures (B01)


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 Dr. Dmitri Yakovlev, Ph.D.

Key Facts

Research profile area:
Optoelectronics and Photonics
Project type:
Project duration:
04/2014 - 03/2021
Funded by:
DFG-Datenbank gepris

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Principal Investigators

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Dr. Eva Rauls

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Prof. Dr. Wolf Gero Schmidt

Faculty of Science

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Prof. Dr. Cedrik Meier

Nanophotonics and Nanomaterials

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Dmitri Yakovlev

Technische Universität Dortmund

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Cooperating Institutions

TU Dortmund

Cooperating Institution


Optical properties of silicon oxynitride films grown by plasma-enhanced chemical vapor deposition
R. Aschwanden, R. Köthemann, M. Albert, C. Golla, C. Meier, Thin Solid Films 736 (2021).
Optical in-situ temperature management for high-quality ZnO molecular beam epitaxy
M. Albert, C. Golla, C. Meier, Journal of Crystal Growth 557 (2021).
Second harmonic generation on excitons in ZnO/(Zn,Mg)O quantum wells with built-in electric fields
J. Mund, D.R. Yakovlev, S. Sadofev, C. Meier, M. Bayer, Physical Review B 103 (2021).
Nanoantennas embedded in zinc oxide for second harmonic generation enhancement
R. Volmert, N. Weber, C. Meier, Journal of Applied Physics 128 (2020).
Zinc oxide based dielectric nanoantennas for efficient nonlinear frequency conversion
C. Golla, N. Weber, C. Meier, Journal of Applied Physics 125 (2019).
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