Ultrafast dynamics.

FEATURES NIJMEGEN
Local Contact

Peter CHRISTIANEN

Field range 0 ... 37.5 T
Spectral range Excitation: Different types of pulsed lasers (wavelength in nm): Ti:Sapphire oscillator: 100 fs @ 80 MHz: 690 – 1040 OPA: 100 fs @ 1 kHz: 290- 1160 Balanced photo-detector: Si diode: 375 – 1000 nm
Temperature range Temperature range depends on sample holder and cryostat In general: 1.5 ... 290 K
Sample size < 5 mm lateral size, ~ 1 mm or less height
Sensitivity Temporal resolution: 100 fs MOKE: 2 mdeg
Typical experiment Femtosecond pump-probe experiment: magneto-optical Kerr effect (MOKE) or reflectivity
Sample Holder Sample mounted on xyz-Attocube positioner with feedback (50 mm bore 30 T magnet) or without feedback (32 mm bore 38 T magnet) Faraday and Voigt configuration
Sample environment Helium exchange gas
Examples Femtosecond MOKE (sample: GdFeCo), Phys. Rev. Lett. 118,117203 (2017)
local contact: P. Christianen