Atomic Force Microscopy

Interferometry

Fiber optic interferometer
Fiber optic interferometer

Unlike many commercially-available AFMs, Bruker provides also instruments employing fiberoptic interferometry. Interferometry is in some cases superior to conventional beam deflection (optical lever) techniques as it provides calibrated measurements of the tip/probe movements. That means Bruker AFMs allow cantilever amplitude values to be set in nanometers not in mV (as with other commercial systems). In addition, spectroscopic modes, e.g. deflection vs. distance curves etc., also provide calibrated results.

The optimum position of the cantilever (green zone) is automatically controlled
The optimum position of the cantilever (green zone) is automatically controlled

Easy exchange of cantilevers

The patented cantilever holder allows an easy exchange of cantilevers without complicated adjustments of the laser beam, guaranteeing fastest experiment set-up times.

The fiber-optic-based design makes the Bruker NANOS AFM the most compact system on the market.