Atom–ion collision experiment
Study the collision dynamics between cold atoms and a single ion with Quatm’s coordinated multi-system control.
Application examples
End-to-end examples from real experiments.
The repository contains complete experiment examples. They are intended to be read together with their project configuration, not as standalone snippets.
| Example | Demonstrates |
|---|---|
| MOT loading optimisation | absorption imaging, MOT sequence, parameter scans and live evaluation |
| Absorption imaging | camera handling, ROI analysis and optical-density calculation |
| Optical dipole trap | trap loading, intensity ramps, calibration and lifetime measurement |
| Ion loading / state detection | ion-trap control, detection thresholds and event processing |
| Quantum-state detection | repeated readout, statistics and state assignment |
| Atom–ion interaction | combining cold-atom and ion-trap subsystems in one experiment |
| System calibration | reference measurements, fitting and calibration persistence |
Each example project includes a README.md, configuration/ and experiments/. Start with the project launcher and run it in simulation mode before connecting hardware.
Structure of an example
- Physical goal — what is measured and why.
- Device setup — the device database entries and calibration files.
- Experiment class — parameters, sequence and analysis hooks.
- Data and analysis — expected HDF5 content and fitting.
- Operational notes — safety checks, common failures and tuning advice.
Dipole-trap optimisation helper
ODT alignment with the experiment helper tool: xODT alignment + stray-field compensation.
Electric-field offset compensation helper
Compensating the stray electric field of an ion trap: a GUI tool + a trap-axis voltage-scan script.
Ion loading and cooling
A complete ion-loading routine from laser ablation to fluorescence detection, using Quatm’s multi-stage timing control.
MOT loading optimisation
Automatically optimise the magneto-optical trap loading efficiency with Quatm’s parameter scans and multi-dimensional timing control.
System calibration
Automated applications of Quatm in routine system calibration and maintenance.
Absorption imaging
Automated acquisition and analysis of atom-cloud absorption images with Quatm’s camera control and image analysis.
Atom–ion interaction in an optical dipole trap
Example experiment on the interaction of a neutral atom with a single ion in an optical dipole trap.
Quantum-state manipulation and detection
Optical pumping and state-dependent fluorescence detection of ionic quantum states, using Quatm’s precise timing and statistical analysis.
Optical dipole trap experiment
Study the trapping and loss characteristics of cold atoms in an ODT with Quatm’s two-parameter scans and lifetime measurements.
Optically trapped ion
Purely optical trapping of an ion in an optical dipole trap, with state detection.