Study of Third Harmonic Generation from Thin Gradient Hf_xAl_yO_zLayers

authored by

David Zuber, Sven Kleinert, Ayhan Tajalli, Morten Steinecke, Marco Jupe, Lars Jensen, Detlev Ristau, Uwe Morgner

Abstract

Third harmonic generation (THG) from multiple thin layer structures has proven its capability to reach conversion efficiencies up to the percentage level [1] , becoming an interesting alternative to the cascaded third harmonic generation. However, such multi-layer structures need to be carefully optimized by computer algorithms. Here, we present a study of a single amorphous Hf x Al y O z layer with varying thickness. The advantage of ternary mixture materials such as Hf x Al y O z is the tunability of the bandgap, which directly influences the nonlinear susceptibility χ (3). In comparison to previous works, where only layers of specific thickness or theoretical models were studied [2] , [3] , we present both, continuous experimental measurements and theoretical studies of the same sample.

Organisation(s)

PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Institute of Quantum Optics

External Organisation(s)

Deutsches Elektronen-Synchrotron (DESY)
Laser Zentrum Hannover e.V. (LZH)

Type

Conference contribution

Publication date

2021

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542234 (Access: Closed)