3D Materials Analytics

UV Autocorrelator

Allgemeine Informationen

Untersuchungsgebiete

3D Materials Analytics

Spectroscopy

Surface Analytics
Techniken

Spectroscopy
Hersteller

various, customized setup
Herstellungsjahr

2025
Gemessene Größe

The system measures an approximation of the autocorrelation function
Hauptanwendung

Optical characterization of quantum light sources
Einrichtung

Der Zugang zu diesem Gerät ist über die MAPEX Core Facility for Materials Analytics möglich.

Technische Aspkete

This UV autocorrelator is sensitive from around 230 – 700 nm, while its optimal optical detection window stretches from 230 – 550 nm. The applied detectors yield a biphoton time resolution of ≤ 220 ps. The low noise UV laser source in use has a wavelength of 266 nm, which enables the characterization of most UV single photon sources (e.g., based on quantum dots, point defects). Due to the acquired piezo mirror, this UV autocorrelator can automatically readjust itself, which is a key feature for longer acquisition times needed for pioneering materials. In addition, this feature enhances the usability of this setup for external users. Furthermore, conventional time-resolved photoluminescence studies (TRPL) can be performed on the basis of this UV autocorrelator.
Weitere Untersuchungsmöglichkeiten

The autocorrelator can also perform time-resolved photoluminescence analyses from 230 - 550 nm with a time-resolution of ≤ 180 ps.

Aktualisiert von: MAPEX