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Terahertz pump-terahertz probe system at Novosibirsk free electron laser: commissioning and results of first experiments

Choporova, Y. Y.; Gerasimov, V. V.; Hübers, H.-W.; Knyazev, B. A.; Kulipanov, G. N.; Ovchar, V. K.; Pavelyev, V. S.; Zhukavin, R. K.; Schneider, H.; Vinokurov, N. A.; Volodkin, B. O.; Shastin, V. N.

Abstract

A single-color pump-probe system has been commissioned at the Novosibirsk free electron laser facility. Monochromatic laser radiation with a bandwidth of about 1% can be tuned within the spectral ranges of 90 - 240 and 30 - 90 μm. The laser emits radiation as a continuous stream of 100-ps pulses with a repetition rate of 5.6 MHz. The average radiation power can reach 100 W. The temperature of samples located in a helium cryostat can be varied from 2 up to 325 K. The results of pump-probe measurements of non-equilibrium dynamics of hot electrons in a germanium crystal will be presented.

Keywords: free-electron laser; pump-probe

Beteiligte Forschungsanlagen

Verknüpfte Publikationen

  • Vortrag (Konferenzbeitrag)
    41st International Conference on Infrared, Millimeter and Terahertz Waves, 25.-30.09.2016, Kopenhagen, Denmark
  • Beitrag zu Proceedings
    41st International Conference on Infrared, Millimeter and Terahertz Waves, 25.-30.09.2016, Kopenhagen, Denmark, 1-2
    DOI: 10.1109/IRMMW-THz.2016.7758465

Permalink: https://www.hzdr.de/publications/Publ-24396