Fig. 4: Visualizing the MIR beam profile on a CCD camera.
From: Infrared chemical imaging through non-degenerate two-photon absorption in silicon-based cameras
a Image of the MIR (3394nm) beam profile using a 1478nm pump pulse. b Image of the razor blade covering half of the MIR region. The cross section is shown at the top of the panel. Error function analysis shows that the resolution is ~15 pixels (~100μm) under the current conditions
