Utility Classes and Functions for the QT3 Lab

This package provides a number of tools and fully-packaged programs for usage in the Quantum Technologies Teaching and Test-Bed (QT3) lab at the University of Washington.

The QT3 lab confocal microscope utilizes the following hardware to perform various spin-control experiments on quantum systems, such as NV centers in diamond:

• TTL pulsers
  • Quantum Composer Sapphire
  • Spin Core PulseBlaster
• Excelitas SPCM for photon detection
• NI-DAQ card (PCIx 6363) for data acquisition and control
• Jena System's Piezo Actuator Stage Control Amplifier
• [Future] spectrometer

The code in this package facilitates usages of these devices to perform experiments.

Setup

Prerequisites

The utilities in this package depend on publicly available Python packages found on PyPI and drivers built by National Instruments for DAQmx and SpinCore for the PulseBlaster. These libraries must be installed separately.

• National Instruments DAQmx
  • driver downloads
• SpinCore's PulseBlaster
  • spinAPI driver

Installation

Once the prerequisite packages have been installed, qt3utils can be installed from pip.

pip install qt3utils

The qt3utils package depends on a handful of other qt3 packages and will be installed for you by default. Additional information may also be found here.

Usage

This package provides GUI applications and a Python API for controlling the hardware and running experiments.

For instructions on using the python API, the simplest way to get started is to see one of the example notebooks.

Applications

QT3 Oscilloscope

The console program qt3scope comes with this package. It allows you to run a simple program from the command-line that reads the count rate on a particular digital input terminal on the NI DAQ.

Review the available command line options for the program. Pay special attention to the --signal-terminal option, ensuring that terminal value matches the current hardware setup.

> qt3scope --help

If default settings are correct, then should be able to run without options

> qt3scope

QT3 Confocal Scan

The console program qt3scan comes with this package. This program launches a GUI applications that will perform a confocal scan using the Jena system piezo actuator.

The run-time options available are very similar to qt3scope. Review the available command line options for the program. Pay special attention to the --signal-terminal option, ensuring that terminal value matches the current hardware setup.

> qt3scan --help

If default settings are correct, then should be able to run without options

> qt3scan

QT3 Piezo Controller

The console program qt3piezo comes installed via the 'nipiezojenapy' package, and may be launched from the command line.

> qt3piezo

Similarly, this applications can be configured via command line options to match the haredware setup.

Debugging

LICENSE

LICENCE