Mode-center Placement of Monolayer WS$_{2}$ in a Photonic Polymer Waveguide
Abstract
Effective integration of 2D materials such as monolayer transition metal dichalcogenides (TMDs) into photonic waveguides and integrated circuits is being intensely pursued due to the materials' strong exciton-based optical response. Here, we present a platform where a WS-hBN 2D heterostructure is directly integrated into the photonic mode-center of a novel polymer ridge waveguide. FDTD simulations and collection of photoluminescence from the guided mode indicate that this system exhibits significantly improved waveguide-emitter coupling over a previous elastomer platform. This is facilitated by the platform's enhanced refractive-index contrast and a new method for mode-center integration of the coupled TMD. The integration is based on a simple dry-transfer process that is applicable to other 2D materials, and the platform's elastomeric nature is a natural fit to explore strain-tunable hybrid-photonic devices. The demonstrated ability of coupling photoluminescence to a polymer waveguide opens up new possibilities for hybrid-photonic systems in a variety of contexts.
Keywords
Cite
@article{arxiv.2107.11523,
title = {Mode-center Placement of Monolayer WS$_{2}$ in a Photonic Polymer Waveguide},
author = {Angelina Frank and Justin Zhou and James A. Grieve and Ivan Verzhbitskiy and José Viana-Gomes and Leyi Loh and Michael Schmid and Kenji Watanabe and Takashi Taniguchi and Goki Eda and Alexander Ling},
journal= {arXiv preprint arXiv:2107.11523},
year = {2021}
}