Highly confined light guiding in a low-loss hybrid Bloch surface waveguide

Qinyu Liu; Rongguo Yin; Weijing Kong

doi:10.1117/12.2638405

20 December 2022 Highly confined light guiding in a low-loss hybrid Bloch surface waveguide

Qinyu Liu, Rongguo Yin, Weijing Kong

Proceedings Volume 12314, Optoelectronic Devices and Integration XI; 1231406 (2022) https://doi.org/10.1117/12.2638405
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

In order to further enhance the electric field confinement ability of the Bloch surface polariton waveguides, here, a new hybrid Bloch surface polariton waveguide is proposed to reduce the mode size while still maintaining the long-range transmission distance of the conventional Bloch surface polariton waveguide. By incorporating an ellipse dielectric nanowire with the photonic crystal slab combined with a sandwiched dielectric nano-ridge, the weak mode confinement ability of the Bloch surface polariton mode can be compensated effectively. For the considered structural parameters, the modal properties of the hybrid waveguide are quantitatively investigated to demonstrate subwavelength mode confinement ability along with ultra-low propagation loss. The nice optical performance of the presented hybrid waveguide structure could serve as a promising building block for many high-performance integrated optical devices.

Conference Presentation

Citation Download Citation

Qinyu Liu, Rongguo Yin, and Weijing Kong "Highly confined light guiding in a low-loss hybrid Bloch surface waveguide", Proc. SPIE 12314, Optoelectronic Devices and Integration XI, 1231406 (20 December 2022); https://doi.org/10.1117/12.2638405

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