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Cascaded optical nonlinearities in dielectric metasurfaces
Sylvain D. Gennaro, Chloe F. Doiron, Nicholas Karl +3
Since the discovery of the laser, optical parametric nonlinearities have been at the core of efficient light conversion sources. Typically, thick transparent crystals or quasi-phas…
Manipulation of Exciton Dynamics in Single-Layer WSe2 Using a Toroidal Dielectric Metasurface
Long Yuan, Jeeyoon Jeong, Kevin Wen Chi Kwock +9
Recent advances in emerging atomically thin transition metal dichalcogenide semiconductors with strong light-matter interactions and tunable optical properties provide novel approa…
Structurally Tunable Nonlinear Terahertz Metamaterials using Broadside Coupled Split Ring Resonators
George R. Keiser, Nicholas Karl, Sheikh Rubaiat Ul Haque +3
We present an experimental and numerical study of a terahertz metamaterial with a nonlinear response that is controllable via the relative structural positioning of two stacked spl…