Study of Third Harmonic Generation from Thin Gradient HfxAlyOzLayers

Verfasst von

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.

Details

Organisationseinheit(en): PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme
Institut für Quantenoptik
Externe Organisation(en): Deutsches Elektronen-Synchrotron (DESY)
Laser Zentrum Hannover e.V. (LZH)
Typ: Aufsatz in Konferenzband
Publikationsdatum: 2021
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Elektronische, optische und magnetische Materialien, Atom- und Molekularphysik sowie Optik
Elektronische Version(en): https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542234 (Zugang: Geschlossen )