Figure 7
From: Impact of GST thickness on GST-loaded silicon waveguides for optimal optical switching
(a) Measured spectrum of the fabricated 70-nm-thick and 5-m-long GST/Si waveguide in the amorphous and crystalline state. The inset shows a scanning electron microscope (SEM) image of the waveguide. The scale bar is 2 \(\upmu\)m. The dashed line encloses the GST layer. (b) Simulated transmission and contribution of each mode along the 5-\(\upmu\)m-long GST/Si waveguide at a wavelength of 1550 nm. The experimental transmission value is also shown. The inset depicts a zoom-out of the plot.
