Magnet Lab

Lab contact: +81(0)98-966-8409
Location: Lab 2 A641
(Prep. Room A642)
 

The Magnet Lab main light source is a high power Ti:Sapphire amplifier system (10 W average power output) with tunable repetition rate ranging from 30 kHz to 100 kHz. This is used to generate a wide variety of wavelengths spanning from the Visible/Near-Infrared (475 nm to 2600 nm) to the Extreme Ultraviolet (60 nm to 30 nm) wavelength range. In addition, the lab also houses two other low power, 80 MHz ultrafast laser system, a 17 T superconducting DC magnet (for which the lab derives its name) and a time-of-flight electron microscope (to be installed in Feb 2018). These capabilities allow us to conduct two-color pump-probe spectroscopy and THz time-domain spectroscopy in B-field, as well as time-resolved photoemission electron microscopy with the EUV light source (in the future).

EXPERIMENTAL CAPABILITIES:

  • Laser sources:
    • KMLabs Wyvern 500 (800 nm, 30 kHz to 100 kHz, 90 µJ to 300 µJ, 45 fs)
    • Spectra Physics MaiTai BB (710-990 nm, 80 MHz, 3 nJ to 20 nJ, 100 fs)
    • Toptica FemtoFiber Pro NIR (780 nm @ 140 mW or 1560 nm @ 350 mW, 80 MHz, 2 to 4 nJ, < 100 fs)
  • Nonlinear wavelength conversion:
    • KMLabs XUUS (60 nm to 30 nm)
    • Light Conversion TOPAS-HR (475 nm to 2600 nm)
  • Superconducting Magnet:
    • Tunable magnetic field: 0 Tesla to 17 Tesla
    • Tunable sample temperature: 2.6 K to 300 K
    • Single solenoid design allowing front face mounting of the sample
    • Two optical windows at the front and back of the magnet allowing beam access for transmission measurements
  • Experimental setups:
    • Homebuilt THz time-domain spectroscopy (600 µm to 75 µm) coupled with the magnet
    • Two-color pump-probe in B-field
    • EUV generation coupled to time-of-flight electron microscope (to be installed in Feb. 2018)

 

​Page last updated on September 05, 2017 (EW/CP).