Getting Started

Prerequisites

Hardware:

The core setup consists of a

• computer

• light source

• monochromator

• two filter wheels

• chopper

• pre-amplifier

• lock-in amplifier

• sample holder

For further details refer to our Hardware section Hardware.

Since the initial start of the sEQE setup the AFMD group has succeeded in integrating and automating a cryostat into the sEQE setup for temperature dependant sEQE measurements. For further information please contact Ming Zhu whos email is on the AFMD webpage.

Software

Proprietary Software:

• Lock-in Amplifier: LabOne by Zurich Instruments which can be downloaded for free at Zurich Instruments download center

Add-on:

• Cryostate: LINK by Linkam Scientific which has to be bought from Linkam Scientific

Free software:

• Working Python installation - setup was written in python 3.9 on Ubuntu. Afterwards it was made Windows compatible and is now mainly running under windows.

What is Python ? And how do I install it ? Important questions whos answers you find under https://www.python.org/about/gettingstarted/ .

• Python packages mentioned in the according requirement files - there is one for Windows users and one for Linux users.

We want to point out the python microscope package which we use to control the Thorlabs filter wheel. It was written by amazing people, go check out their current projects !

Installation

0. Setup a virtual environment - why ? Great question, see https://www.freecodecamp.org/news/how-to-setup-virtual-environments-in-python/

1. Log into the virtual environment and clone the git repository from https://github.com/AFMD/sEQE-Setup

2. Choose according to your operating system the suitable requirements file and install dependencies via:

   pip install -r requirements_file.txt