PI's ultra fast piezo steering mirror platforms are based on frictionless flexure guides and high-speed solid-state piezoelectric drives.
Fast and Compact
These compact devices can provide integrated pitch and roll motion with a single moving mirror. They are faster than galvo-scanners and voice-coil driven beam steering systems (also available from PI) and can be used in both static and highly dynamic operation (e.g. scanning, tracking, drift and vibration cancellation).
Advantages of PI Piezo Steering Mirrors
Coplanar multiaxis motion (based on parallel kinematics design), fast response (sub-millisecond), high resolution (up to nanoradian range), long travel ranges (up to 3 degrees optical deflection)
PI's parallel-kinematics multi-axis steering mirrors use only one platform/mirror for all axes. There is one common pivot point and no polarization rotation, an important feature for many precision optics applications.
Overview Piezo Steering Mirrors
PZT tube scanners are often used in scanning microscopy applications. PZT tubes make use of the d31 piezo effect. When voltage is applied, the tube shrinks radially and axially, proportional with the voltage. By segmenting the tube axially, multi-axis motion is feasible and scanning is possible.
PICA Shear actuators can also be used in lateral scanning applications. They are more robust than scanner tubes and come in single axis to XYZ configurations.
P-363 XYZ PicoCube nanopositioning stages are based on shear actuators and capacitive position feedback sensors.
The P-313 XYZ scanner is made of a highly linear crystalline electroactive material and does not require position feedback sensors and closed-loop operation. The advantage is extremely high bandwidth and picometer precision, but at small travel ranges of 1µm.