Analysis of an electrically induced optical waveguide in a-axis barium titanate thin film
View/ Open
Date
2021-12Author
Arif Mawardi, Ismail
Prabakaran, Poopalan
Nurjuliana, Juhari
Mohd Azarulsani, Md. Azidin
Metadata
Show full item recordAbstract
In this paper, we report our analysis of an electrically generated optical waveguide in a 𝑐-
axis barium titanate (BTO) thin film. The waveguide consists of a BTO thin film which is
sandwiched between two electrodes. The thin film forms a waveguide when a voltage
difference is applied across the electrodes. It is found that the formed waveguide supports
both TE and TM modes, with TM modes more tightly confined within the waveguide than
TE modes. The possibility to turn the waveguide on and off simply by turning the electric
field on and off may prove useful for optical switching.