The magneto-optics is a special measurement station, which combined high magnetic fields, low temperature, UV/VIS/NIR light to form a sophisticated system. By using this station, various magneto-optical effect can be detected.

Experiments

Magneto-photoluminescence,

Magneto-optical absorption,

Magneto-Optical Kerr and Faraday Rotation (under improvements).

Compatible Magnets

·60 T multi-shot magnet,

Bore size ~32mm, pulsed duration~50 ms, sample temperature 77 K and 4.2 K, cooling time: 40 mins@50 T

·30 T multi-shot magnet,

Bore size ~18mm, pulsed duration~30 ms, sample at room temperature, cooling time: 4 hours@30 T

Available Equipment

·5 T superconducting magnet, Bore size ~41mm, sample temperature RT-5 K

·Ultrafast (130fs) Ti:sapphire oscillator (frequency doubling available)

·Visible & IR Optical Parametric Oscillator (OPO)

·Argon laser (488, 514 nm)

·Solid state lasers (355, 405, 532, 980 nm)

·Bromine-Tungsten lamp (400-2000 nm)

·UV-VIS CCD array dectector (back-thinned, Andor)

·IR array detector (InGaAs array, LN2-cooled; Princeton Instruments)

·500 mm spectrometers (Acton and Andor)

Related publications

1. C. Chen, Y, B. Han, X. J. Wang, P. P. Chen, J. B. Han, L. Li, “Low temperature photo-induced carrier dynamics in the GaAs_0.985N_0.015alloy”,J. Alloy Compd.,699, 297, 2017.

2. Z. Q. Zhong, X. Wang, J. P. Zhang, H. Z. Zhong, and J. B. Han, “Optical detection of magnetic field with Mn41:K2SiF6 phosphor from room to liquid helium temperatures”,Appl. Phys. Lett.110, 212405, 2017.

3. J. B. Han, Y. B. Han, L. Li, “Optical properties of rare earth ion doped luminescent materials under a pulsed high magnetic field”,Physics,45, 26, 2016.

4. G. H. Du, P. Liu, W. W. Guo, Y. B. Han, J. P. Zhang, J. B. Han, Z. L. Liu, and K. L. Yao, “The influence of high magnetic field on electric-dipole emission spectra of Eu³⁺in different single crystals”,J. Mater. Chem. C, 1, 7608, 2013.

Staff contact

Junbo Han, Yibo Han, Weihang Zhou