Magneto-optics

The magneto-optical lab is used for a variety of spectroscopic techniques in a large wavelength range from the near-infrared to the near-ultraviolet as well as for electrical transport experiments. The triple spectrometer (Princeton Research/Acton, TriVista) can be operated in a number of different configurations and is equipped with single channel (InGaAs photomultiplier) as well as multichannel detectors (charge-coupled device and InGaAs diode array). Samples can be measured under an electrical bias in a microscope cryostat as well as in a magnetic field using a superconducting-magnet cryostat. For optical polarization measurements, a photoelastic modulator (PEM) is utilized with detection in the frequency or time domain using lock-in techniques and gated photon-counting, respectively.

Specifications for magneto-optical laboratory 

(click the image to see a scheme of the setup)