Strain-Controlled Polar-Ion Displacement Unlocks Reconfigurable Second-Harmonic Generation in van der Waals CuCrP2S6
Xian Zhang, Shikun Hou, Siyu Zhang, Junying Chen et autres
Abstract Two-dimensional van der Waals multiferroics offer a low-dimensional platform for tuning nonlinear optical responses through lattice distortion and polar symmetry. Yet translating polar-ion displacement into strong and tunable macroscopic second-harmonic generation (SHG) remains challenging as limited ionic off-centering and interlayer cancellation …
us, au, cn (code pays fourni par la source)
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ACS Photonics