Open AccessPhotonic crystals for controlling strong coupling in van der Waals materials
Author(s) -
Rahul Gogna,
Long Zhang,
Zhaorong Wang,
Hui Deng
Publication year - 2019
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.022700
Subject(s) - polariton , photonics , planar , photon , van der waals force , optoelectronics , photonic crystal , exciton , dielectric , semiconductor , slab , materials science , quantum well , optics , quantum optics , exciton polaritons , purcell effect , wavelength , physics , spontaneous emission , condensed matter physics , laser , quantum mechanics , computer graphics (images) , molecule , geophysics , computer science
The design of photonic structures plays a crucial role in the engineering of light-matter interactions. Planar microcavities have been widely used to establish strong light-matter coupling in semiconductor quantum wells, leading to intense research on exciton-polariton systems in the past few decades. However, planar cavities are limited in material compatibility, inflexible for mode engineering, and bulky for integration. Here we demonstrate dielectric slab photonic crystals as a flexible and compact platform for polaritons, where excitons are strongly coupled to photons confined in the leaky modes of the slab. We show our structure is well-suited for van der Waals materials, features unusual adjustable dispersions, and allows for multi-wavelength operation on a single chip.