We report on the nonlinear optical properties of the phase change material Ge2Sb2Se4Te1 (GSST). A 30-fold enhancement of third-harmonic generation is also demonstrated using a GSST metasurface operating in the mid-wave infrared region.
Mid-infrared metasurface based on a phase-change material for enhanced third-harmonic generation
Piccoli R.;
2021-01-01
Abstract
We report on the nonlinear optical properties of the phase change material Ge2Sb2Se4Te1 (GSST). A 30-fold enhancement of third-harmonic generation is also demonstrated using a GSST metasurface operating in the mid-wave infrared region.
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