Continuing with the desktop system, we have had fun taking some more images, using the violet laser. This time the sample is a planar microwave inductor that we had lying around. As you can see the inductor has 8 turns and a track width/separation of about 10 um. The circular pads are for wire-bonding to and the lighter regions are thin-film gold. By the way, do let us know if you have any good ideas for devices to image - an old integrated circuit with relatively big feature size might be interesting.
In addition to the image, here is a cross-section through it (about half way up). The risers are about 1 um and, in the future, we will use these to profile the beam and see how close to the diffraction limit we get.