Fig. 3: Third harmonic generation measurements results.
From: Near-infrared to ultra-violet frequency conversion in chalcogenide metasurfaces
A Schematic illustration of the experimental setup. B Measured transmittance of the fabricated sample. The transmission dip appearing at around 1054 nm is in agreement with numerically simulated transmittance and experimental results. C Third harmonic intensity was measured for the uniform thin film and for nanowire-based metasurface. The intensity of the THG from the metasurface is about 5.5 times larger than that from the reference 300-nm-thick As2S3 thin film.
