User`s guide

Preparing for Imaging 4
Agilent 5500 SPM User’s Guide 76
back to the center of its travel in both directions. Doing so should make
the laser spot reappear.
Figure 50 Laser alignment control when far out of alignment
In some cases, particularly with highly reflective samples, you can use
the 5500 SPM’s video system to focus on the cantilever and align the
laser spot (Figure 51). The laser spot will be visible in the video image
until it crosses the cantilever, so you can use a similar procedure to the
paper method above. See “Using the Video System” later in this chapter.
Figure 51 Using video system to align laser