A single-color pump-probe system has been commissioned at the Novosibirsk free electron laser. The laser emits a tunable monochromatic terahertz radiation. To prove the proper system operation, we investigated the time-resolved absorption of a sample of n-type germanium doped with antimony, which was previously investigated at the FELBE facility, in the temperature range from 5 to 40 K. The measured relaxation time amounted to about 1.7 ns, which agreed with the results obtained at the FELBE. The results of pump-probe measurements of non-equilibrium dynamics of hot electrons in the germanium crystal at cryogenic temperatures are presented for wavelengths of 105, 141 and 150 μm.


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    Titel :

    First terahertz-range experiments on pump – probe setup at Novosibirsk free electron laser


    Beteiligte:
    Choporova, Yu. Yu. (Autor:in) / Gerasimov, V. V. (Autor:in) / Knyazev, B. A. (Autor:in) / Sergeev, S. M. (Autor:in) / Shevchenko, O. A. (Autor:in) / Zhukavin, R.Kh. (Autor:in) / Abrosimov, N. V. (Autor:in) / Kovalevsky, K. A. (Autor:in) / Ovchar, V. K. (Autor:in) / Hübers, H.-W. (Autor:in)

    Kongress:

    2016 ; Novosibirsk, Russia


    Erschienen in:

    Physics Procedia ; 84 ; 152-156


    Erscheinungsdatum :

    2016



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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