Engineering and Technology
Giant electric field-induced second harmonic generation in polar skyrmions
S. Wang, W. Li, et al.
This groundbreaking research highlights how polar skyrmions in ferroelectric superlattices can achieve impressive electric field-induced second harmonic generation, showcasing a second-order nonlinear susceptibility of -54.2 pm V⁻¹ and a depth modulation of -664% V⁻¹. The work, conducted by Sixu Wang and team, emphasizes the innovative potential of topological polar structures in advancing photonic and optoelectronic applications.
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