Introduction
Magneto-infrared spectroscopy measurement unit mainly includes: (1) the Fourier transform infrared spectrometer coupled with the 12 T split pair superconducting magnet: the energy range of the optical spectra is from 30 to 25000 cm-1, the energy resolution can be 0.15 cm-1, the temperature range of the measured samples is from 4.2 to 300 K, the highest magnetic field is 12 T; (2) the Fourier transform infrared spectrometer coupled with the 20 T solenoid superconducting magnet: the energy range of the optical spectra is from 30 to 25000 cm-1, the energy resolution can be 0.15 cm-1, the lowest sample temperature is 4.2 K, the highest magnetic field is 20 T.
Time resolved terahertz spectroscopy measurement unit is composed of the terahertz time-domain spectroscopy under magnetic field and multiple pump-probe measurement systems. (1) Terahertz time-domain spectroscopy under magnetic field: The available THz spectra in this configuration covers from 0. 1 to 3.5 THz. The lowest sample temperature is 1.5 K and the maximal magnetic field is 10 T. The magnetic field dependent measurements can be performed in Faraday and Voigt geometry. (2) ultrafast pump-probe spectroscopy: the intense pump beam whose energy could be tuned from near infrared down to mid-infrared (6 – 15 μm) and terahertz frequency (> 1 MV/cm) range by different optical techniques. We can perform different pump-probe measurements using the wavelength tunable lasers in the lab.
Parameter
| Parameters | Values |
| infrared | Fourier transform infrared spectral resolution ≤ 0.15 cm-1 at 20 T, 2 K |
| Terahertz | Time resolution <50 fs, Terahertz spectral frequency range: 0.2-3 THz |
Contact
Magneto-infrared spectroscopy measurement unit, Zhiguo Chen, E-mail: zgchen@iphy.ac.cn
Time resolved terahertz spectroscopy measurement unit, Xinbo Wang, E-mail: xinbowang@iphy.ac.cn
