Polarisation-dependent measurement
Rotate waveplates, polarisers and samples through controlled angular steps.

Opto-Mechanics · Ambient Piezo Stages - Lab rotary stages
Lab rotary piezo motor stage; 65 x 65 mm footprint; 360 deg endless rotation; 2 kg payload; optical encoder closed-loop feedback; .E 50 nm-class cost-effective and vacuum/non-magnetic variants available.
Datasheet (PDF) ↗Catalog context
RS65.Lab is listed in the Ambient Piezo Stages - Lab rotary stages family. The local catalog record provides these first selection fields: Active axes: θZ; Mass: 120 g; Travel range: 360 °.
| Active axes | θZ |
|---|---|
| Mass | 120 g |
| Travel range | 360 ° |
| Max Driving Frequency | 20 kHz |
| Aperture | 25.4 mm |
| Max. Velocity | 25 °/s |
| Minimum Incremental Motion(Close-loop) | 3 urad |
| Unidirection Repeatability | ±5 urad |
| Max. Payload (horizontal mounting) | 2 kg |
| Holding Torque | 100 N·mm |
| Driving Torque | 40 N·mm |
| Diameter of Rotating Disc | 62 mm |
| Sensor Type | Optical Sensor |
| Sensor Resolution | 0.07 urad |
| Controller | MC-Newton.S series |
Application context
Rotate waveplates, polarisers and samples through controlled angular steps.
Bring a facet, crystal axis or device feature to the measurement angle and hold it there.
Drive azimuthal sweeps where angular repeatability sets the quality of the dataset.
System integration
Use these checks to connect RS65.Lab to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Travel range: 360 ° · Unidirection Repeatability: ±5 urad. Separate travel from resolution and both from repeatability. Repeatability is what an automated sequence actually depends on, and it is the figure most often absent from a headline specification.
Controller: MC-Newton.S series. Pair open-loop mechanics with the specified high-voltage or inertial driver, and closed-loop variants with the controller their capacitive, strain-gauge or encoder feedback requires. Matching connectors do not guarantee electrical compatibility.
Max. Payload (horizontal mounting): 2 kg. Check the load rating in the orientation you will use it — a vertical or cantilevered load is a moment, not a mass — and match the base to an M6 pattern on a 25 mm grid or a 1/4"-20 pattern on a 1 inch grid.
Specifying this part
Rotary encoders read to around 50 nm equivalent rather than the 2 nm of the linear stages. If angular repeatability drives the measurement, check it against the encoder figure rather than assuming the linear specification carries across.
Most of the range is orderable as .HV (high vacuum), .UHV (ultra-high vacuum) or .NM (non-magnetic). The suffix changes materials, cabling and bake compatibility rather than the mechanics, so specify it against the chamber the stage will live in.
Full series comparison, controller pairing and mounting hardware on the ambient piezo stages overview, or work through the selection with the configurator.
Model selection
Compare RS65.Lab with the closest available models in the Ambient Piezo Stages - Lab rotary stages family.
| Selection parameter | RS65.Lab (current) | RS35.Lab |
|---|---|---|
| Travel / adjustment | 360 ° | 360 ° |
| Resolution / sensitivity | 0.07 urad | 0.2 urad |
| Load / optic size | 25.4 mm | 5 mm |
| Mounting interface | 2 kg | 500 g |
Before you specify
Engineering context for choosing this class of component, with the tradeoffs worked through on real specifications.
NanopositioningDecide what to move — sample, objective or both — then turn field of view, stack depth, settling and synchronisation into stage specifications. Comparison tables, an acquisition-time calculator, three configurations and a purchasing checklist on documented objective scanners, clear-aperture XYZ stages and controllers.
Open guide
NanopositioningWhy an open-loop piezo is wrong by 15 % of its travel, how creep grows with the logarithm of hold time, what strain-gauge and capacitive feedback actually fix — and the bandwidth and sensor noise a servo costs you in return.
Open guide
NanopositioningPiezo ceramic strains by one part in a thousand, so a 20 mm stack gives 20 µm. Every stage architecture is a different way around that limit — and each one wins a different experiment.
Open guide