Figure 2
From: All-optical modulation in Mid-Wavelength Infrared using porous Si membranes
(a) Transmittance change, ΔT/T0, for the 4 μm probe measured on the 13- and 111-μm thick pSi membranes as a function of the pump beam power. (b) The reflectance change, ΔR/R0, as a function of the pump beam power at 4 μm probe for the 111-μm thick sample.
