MCL Think Nano Nano-CZ200 Closed-Loop Piezoelectric Z-Axis Translation Stage

Overview

The MCL Think Nano Nano-CZ200 is a high-precision, single-axis (Z-direction) piezoelectric translation stage engineered for sub-nanometer positional stability and long-range vertical displacement in constrained optical and metrological environments. Built upon MCL’s proprietary PicoQ® capacitive position sensing architecture, the Nano-CZ200 delivers absolute, drift-free position feedback without reliance on external encoders or homing routines. Its monolithic aluminum structure ensures thermal and mechanical stability, while its compact footprint (38.1 mm × 38.1 mm base) enables integration into multi-axis stacks, vacuum-compatible optical breadboards, and confined instrumentation housings. Unlike open-loop piezo actuators, the Nano-CZ200 operates under true closed-loop control—continuously comparing commanded position to real-time sensor output and applying dynamic correction—making it suitable for applications demanding repeatable, hysteresis-compensated motion over extended duty cycles.

Key Features

• 200 µm continuous Z-axis travel with 0.4 nm closed-loop resolution, enabling precise focus adjustment and nanoscale vertical scanning
• Integrated PicoQ® capacitive position sensor providing absolute position measurement and eliminating cumulative error from step-based actuation
• Resonant frequency of 500 Hz ±20%, supporting high-bandwidth positioning tasks such as active vibration compensation and dynamic focus tracking
• Rigid aluminum body with 1.0 N/µm lateral stiffness, minimizing parasitic tilt and deformation under load
• Orientation-agnostic design: functions reliably in horizontal, vertical, or inverted mounting configurations
• Optional centered optical aperture (up to 6.35 mm diameter) for through-stage beam paths—ideal for confocal microscopy, interferometry, or collimated laser alignment
• Compatible with MCL’s Nano-Drive® controller, which supports analog voltage input (±10 V), USB 2.0 communication, and programmable waveform generation (sine, ramp, step)

Sample Compatibility & Compliance

The Nano-CZ200 is designed for use with optomechanical components weighing ≤0.1 kg in vertical orientation and ≤0.5 kg horizontally—common for mirror mounts, fiber couplers, objective lens adapters, and micro-probes. Its non-magnetic, anodized aluminum construction meets standard cleanroom compatibility requirements (ISO Class 5 and above). While not certified to specific regulatory standards out-of-the-box, the stage’s deterministic closed-loop behavior and traceable position feedback support compliance with ISO/IEC 17025 calibration workflows and GLP/GMP-aligned instrumentation validation protocols. When paired with Nano-Drive® firmware v3.2+, the system logs timestamped position data with audit-trail capability—facilitating 21 CFR Part 11–compliant documentation when integrated into validated laboratory systems.

Software & Data Management

Control and automation are enabled via MCL’s Nano-Drive® software suite (Windows/Linux/macOS), offering GUI-based manual positioning, script-driven multi-point sequencing, and real-time position monitoring at up to 1 kHz sampling rate. The SDK provides native C/C++, Python, MATLAB, and LabVIEW APIs, allowing seamless integration into custom acquisition pipelines—for example, synchronizing Z-motion with camera frame triggers in adaptive optics or correlating vertical displacement with photodetector signal changes in surface profilometry. All position commands and sensor outputs are logged in CSV format with microsecond timestamps, supporting post-acquisition analysis of settling time, overshoot, and repeatability across thousands of cycles.

Applications

• Precision optical alignment of mirrors, beamsplitters, and waveplates in ultra-stable interferometers (e.g., Michelson, Mach-Zehnder)
• Vertical positioning of cantilevers and AFM probes during nano-indentation or force spectroscopy experiments
• Focal plane stabilization in super-resolution fluorescence microscopy (STED, PALM) and light-sheet imaging
• Calibration reference stages for coordinate measuring machines (CMMs) and laser interferometer systems per ISO 230-2
• Active compensation of thermal drift in cryogenic optical setups where passive materials exhibit coefficient mismatches
• Integration into automated wafer inspection tools requiring repeatable Z-height referencing between die sites

FAQ

Is the Nano-CZ200 compatible with vacuum environments?
Yes—the standard version operates in ambient air; however, vacuum-compatible variants (with modified cabling and outgassing-tested materials) are available upon request and require engineering consultation.
Can multiple Nano-CZ200 stages be synchronized?
Yes—using the Nano-Drive® controller’s multi-channel mode and shared clock triggering, up to four axes can be coordinated with sub-millisecond timing alignment.
What is the typical settling time to within ±1 nm at full range?
Under closed-loop conditions with default PID tuning, settling time to ±1 nm is ≤12 ms for 100 µm moves; optimized parameters can reduce this to <8 ms.
Does the center aperture option affect mechanical stiffness or resonant frequency?
Aperture machining reduces axial stiffness by <5% and lowers resonant frequency by ≤15 Hz—values remain stable and characterized in the supplied calibration certificate.
Is firmware update support provided for legacy Nano-Drive® units?
Yes—MCL maintains backward-compatible firmware releases for all Nano-Drive® generations since 2018, accessible via registered user portal with version-controlled changelogs.