Figure 5
From: Continuous-wave second-harmonic generation in the far-UVC pumped by a blue laser diode
(a), Far-UVC power quadratic dependence on the off-chip pump power. The inset shows the far-UVC signal from an ECDL laser and an FP diode laser. (b), Waveguide width dependence on the far-UVC output intensity and the Cherenkov angle. The inset shows the angular dependence on the far-UVC output for pump wavelengths of 445 nm and 473 nm from a 1500 nm wide waveguide.
