Barium titanate nanostructures and thin films for photonics

A Karvounis, F Timpu… - Advanced Optical …, 2020 - Wiley Online Library
Barium titanate (BaTiO3) is a synthetic crystal used in electromechanical transducers and
multilayer ceramic capacitors. Since it is not available in nature, a variety of growth methods …

Epitaxial oxides on semiconductors: from fundamentals to new devices

DP Kumah, JH Ngai, L Kornblum - Advanced Functional …, 2020 - Wiley Online Library
Functional oxides are an untapped resource for futuristic devices and functionalities. These
functionalities can range from high temperature superconductivity to multiferroicity and novel …

Large Pockels effect in micro-and nanostructured barium titanate integrated on silicon

S Abel, F Eltes, JE Ortmann, A Messner, P Castera… - Nature materials, 2019 - nature.com
The electro-optical Pockels effect is an essential nonlinear effect used in many applications.
The ultrafast modulation of the refractive index is, for example, crucial to optical modulators …

A ferroelectric multilevel non-volatile photonic phase shifter

J Geler-Kremer, F Eltes, P Stark, D Stark, D Caimi… - Nature …, 2022 - nature.com
A novel class of programmable integrated photonic circuits has emerged over the past
years, strongly driven by approaches to tackle unsolved computing problems in the optical …

[HTML][HTML] Towards oxide electronics: a roadmap

M Coll, J Fontcuberta, M Althammer, M Bibes… - Applied surface …, 2019 - Elsevier
At the end of a rush lasting over half a century, in which CMOS technology has been
experiencing a constant and breathtaking increase of device speed and density, Moore's …

Oriented Plate-like KNbO3 Polycrystals: Topochemical Mesocrystal Conversion and Piezoelectric and Photocatalytic Responses

D Yang, Y Wang, C Chen, Y Su, L Li, L Miao… - Inorganic …, 2023 - ACS Publications
KNbO3 (KN) with a perovskite structure is an outstanding representative of lead-free
piezoelectric materials, and its mesocrystals have broad application prospects in the fields of …

A BaTiO_3-Based Electro-Optic Pockels Modulator Monolithically Integrated on an Advanced Silicon Photonics Platform

F Eltes, C Mai, D Caimi, M Kroh, Y Popoff… - Journal of Lightwave …, 2019 - opg.optica.org
To develop a new generation of high-speed photonic modulators on silicon-technology-
based photonics, new materials with large Pockels coefficients have been transferred to …

Unveiling the Pockels coefficient of ferroelectric nitride ScAlN

G Yang, H Wang, S Mu, H **e, T Wang, C He… - Nature …, 2024 - nature.com
Nitride ferroelectrics have recently emerged as promising alternatives to oxide ferroelectrics
due to their compatibility with mainstream semiconductor processing. ScAlN, in particular …

[HTML][HTML] Fabrication and photonic applications of Si-integrated LiNbO3 and BaTiO3 ferroelectric thin films

Y Wen, H Chen, Z Wu, W Li, Y Zhang - APL Materials, 2024 - pubs.aip.org
Silicon, renowned for its applications in electronic circuits, also offers significant advantages
in the realm of integrated optics. While silicon does have inherent limitations in fabricating …

Integration Of Solution‐Processed BaTiO3 Thin Films with High Pockels Coefficient on Photonic Platforms

E Picavet, E Lievens, K De Geest… - Advanced Functional …, 2024 - Wiley Online Library
The heterogeneous integration of ferroelectric BaTiO3 thin films on silicon (Si) and silicon
nitride (SiN)‐based platforms for photonic integrated circuits (PICs) plays a crucial role in the …