Laboratory of optical spintronics
The primary purpose of the Laboratory of optical spintronics, which was estalished in 2011, is to study ultrafast spintronic phenomena in solids using magneto-optical time- and spatially-resolved spectroscopy. The experimental setup allows for measurements in magnetic fields and a wide range of temperatures in the transmission and reflection geometries.
The laboratory is a part of the Laboratory of OptoSpintronics, a joint facility of the Faculty of Mathematics and Physics, Charles University and the Institute of Physics of the Academy of Sciences of the Czech Republic.
Laboratory equipment
The core of the laboratory consists of pump-probe experimental setup with a broad spectral tunability for optical and magneto-optical measurements, including spatially-resolved experiments.
Key equipment includes:
- two optical parametric amplifiers (Orpheus NEO, Light Conversion) pumped by 20 W ytterbium-doped femtosecond laser (Pharos, Light Conversion); spectral tunability 320–2600 nm, repetition rate 100 kHz, pulse duration 150 fs
- femtosecond Ti:sapphire laser (Mai Tai HP, Spectra Physics); pulse energy 30 nJ, wavelength tunability 690–1040 nm, 120 fs, repetition rate 82 MHz
- closed-cycle low-vibration helium cryostat (DryICE DYAD, ICE Oxford); equipped with 5 T split coil superconducting magnet, temperature range 1.7–300 K
- closed-cycle He cryostat (Advanced Research Systems); temperature range 10–800 K, vibration < 1 nm, electrical connectors
- electromagnet (Walker Scientific) generating magnetic field up to 1.5 T
- magneto-optical microscopy setup
