학술논문
Observation Of Phonon-Driven Enhanced THz Generation In Thin-Film Lithium Niobate
Document Type
Conference
Author
Source
2023 Seventeenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Artificial Materials for Novel Wave Phenomena (Metamaterials), 2023 Seventeenth International Congress on. :X-062-X-065 Sep, 2023
Subject
Language
ISSN
2573-2706
Abstract
We investigated the THz generation from a 500 nm lithium niobate thin film by optical rectification of femtosecond pulses. A comparison between the numerical studies and polarization-resolved measurements of the THz signal reveals an enhancement of the nonlinear response in the thin film due to the phonon-driven ionic contributions. Our results pave the way to the development of new integrated THz emitters and detectors operating up to 8 THz based on nanophotonic structures, such as nanowires and metasurfaces, realized in the thin film lithium niobate platform.