Titre :

A barium titanate‐on‐oxide insulator optoelectronics platform

Auteur(s) :

Cao, Yu [Auteur]
National University of Singapore [NUS]
Tan, Siew Li [Auteur]
National University of Singapore [NUS]
Cheung, Eric Jun Hao [Auteur]
National University of Singapore [NUS]
Siew, Shawn Yohanes [Auteur]
National University of Singapore [NUS]
Li, Changjian [Auteur]
National University of Singapore [NUS]
Liu, Yan [Auteur]
National University of Singapore [NUS]
Tang, Chi Sin [Auteur]
National University of Singapore [NUS]
Lal, Manohar [Auteur]
National University of Singapore [NUS]
Chen, Guanyu [Auteur]
National University of Singapore [NUS]
Dogheche, Karim [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Yang, Ping [Auteur]
National University of Singapore [NUS]
Pennycook, Steven [Auteur]
National University of Singapore [NUS]
Wee, Andrew Thye Shen [Auteur]
National University of Singapore [NUS]
Chua, Soojin [Auteur]
National University of Singapore [NUS]
Dogheche, El Hadj [Auteur]
Optoélectronique - IEMN [OPTO - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Venkatesan, Thirumalai [Auteur]
National University of Singapore [NUS]
Danner, Aaron [Auteur]
National University of Singapore [NUS]

Titre de la revue :

Advanced Materials

Pagination :

2101128

Éditeur :

Wiley-VCH Verlag

Date de publication :

2021-09

ISSN :

0935-9648

Mot(s)-clé(s) en anglais :

barium titanate-on-insulators
low loss
nonlinear optical materials
optoelectronics
waveguides

Discipline(s) HAL :

Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

Electro-optic modulators are among the most important building blocks in optical communication networks. Lithium niobate, for example, has traditionally been widely used to fabricate high-speed optical modulators due to ...
Lire la suite >Electro-optic modulators are among the most important building blocks in optical communication networks. Lithium niobate, for example, has traditionally been widely used to fabricate high-speed optical modulators due to its large Pockels effect. Another material, barium titanate, nominally has a 50 times stronger r-parameter and would ordinarily be a more attractive material choice for such modulators or other applications. In practice, barium titanate thin films for optical waveguide devices are usually grown on magnesium oxide due to its low refractive index, allowing vertical mode confinement. However, the crystal quality is normally degraded. Here, a group of scandate-based substrates with small lattice mismatch and low refractive index compared to that of barium titanate is identified, thus concurrently satisfying high crystal quality and vertical optical mode confinement. This work provides a platform for nonlinear on-chip optoelectronics and can be promising for waveguide-based optical devices such as Mach-Zehnder modulators, wavelength division multiplexing, and quantum optics-on-chip.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL