Ordered an Akiyama Probe that is a self exciting probe which will not require the use of a light system in order to get the surface structure data. This will relate the surface structure data since the probe will be oscillating at a set frequency and by means of a PLL any shift in phase caused by the interaction with the surface structure will be recorded.

More details about akiyama probes can be found at:-

http://www.akiyamaprobe.com/wp-content/uploads/2009/03/akiyama-probe_technicalguide_2009mar23.pdf