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An Inverse-Designed Nanophotonic Interface for Excitons in Atomically Thin Materials

Gelly, Ryan J. ; White, Alexander D. ; Scuri, Giovanni ; Liao, Xing ; Ahn, Geun Ho ; Deng, Bingchen ; Watanabe, Kenji ; Taniguchi, Takashi ; Vučković, Jelena ; Park, Hongkun

Nano letters, 2023-09, Vol.23 (18), p.8779-8786 [Periódico revisado por pares]

United States: American Chemical Society

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Título:
An Inverse-Designed Nanophotonic Interface for Excitons in Atomically Thin Materials
Autor: Gelly, Ryan J. ; White, Alexander D. ; Scuri, Giovanni ; Liao, Xing ; Ahn, Geun Ho ; Deng, Bingchen ; Watanabe, Kenji ; Taniguchi, Takashi ; Vučković, Jelena ; Park, Hongkun
Assuntos: 2D materials ; ATOMIC AND MOLECULAR PHYSICS ; cavities ; color centers ; excitons ; hexagonal boron nitride ; integrated photonics ; inverse design ; monolayers ; nanophotonics ; optical cavity ; photonics ; waveguides
É parte de: Nano letters, 2023-09, Vol.23 (18), p.8779-8786
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
USDOE
SC0020115
Descrição: Efficient nanophotonic devices are essential for applications in quantum networking, optical information processing, sensing, and nonlinear optics. Extensive research efforts have focused on integrating two-dimensional (2D) materials into photonic structures, but this integration is often limited by size and material quality. Here, we use hexagonal boron nitride (hBN), a benchmark choice for encapsulating atomically thin materials, as a waveguiding layer while simultaneously improving the optical quality of the embedded films. When combined with a photonic inverse design, it becomes a complete nanophotonic platform to interface with optically active 2D materials. Grating couplers and low-loss waveguides provide optical interfacing and routing, tunable cavities provide a large exciton-photon coupling to transition metal dichalcogenide (TMD) monolayers through Purcell enhancement, and metasurfaces enable the efficient detection of TMD dark excitons. This work paves the way for advanced 2D-material nanophotonic structures for classical and quantum nonlinear optics.
Editor: United States: American Chemical Society
Idioma: Inglês

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An Inverse-Designed Nanophotonic Interface for Excitons in Atomically Thin Materials

Gelly, Ryan J. ; White, Alexander D. ; Scuri, Giovanni ; Liao, Xing ; Ahn, Geun Ho ; Deng, Bingchen ; Watanabe, Kenji ; Taniguchi, Takashi ; Vučković, Jelena ; Park, Hongkun

United States: American Chemical Society

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