2024
DOI: 10.1002/adma.202400858
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Extraordinary Enhancement of Nonlinear Optical Interaction in NbOBr2 Microcavities

Wenduo Chen,
Song Zhu,
Ruihuan Duan
et al.

Abstract: Two‐dimensional (2D) materials are burgeoning as promising candidates for investigating nonlinear optical effects due to high nonlinear susceptibilities, broadband optical response, and tunable nonlinearity. However, most 2D materials suffer from poor nonlinear conversion efficiencies, resulting from the reduced light‐matter interactions and lack of phase matching at atomic thicknesses. Herein, we report a new 2D nonlinear material, niobium oxide dibromide (NbOBr2), featuring strong and anisotropic optical non… Show more

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