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Intense terahertz magnetic fields are used to control the magnetization state of ferromagnetic cobalt thin film. The dynamics visualized by magneto optic Kerr effect is non-resonant and take place over sub-picosecond time scale. The observed magnetic response is coherently locked to the THz carrier oscillations.
We demonstrate non-resonant magnetization dynamics in the ferromagnetic cobalt thin film induced by a high-field Terahertz pulse. The magnetization dynamics are coherent and exactly follow the THz carrier oscillations.
Single-cycle THz pulses with electric field strength of MV/cm are required for wide range of applications from physics to biology and medicine [1]. Presently, high fields are still challenging to produce in the THz gap (0.1–10 THz) where important condensed matter resonances are expected (i.e. magnons, phonons, electromagnons). We present our latest results on the generation of 1.5 MV/cm electric...
We demonstrate temporally shaped pulses in the deep ultraviolet spectral range (270 nm) with energies up to 37 μJ using an efficient prism stretcher and an acousto-optic programmable dispersive filter (AOPDF) applied directly in the UV. The scheme allows for arbitrary phase and amplitude shaping of picosecond UV pulses at high energy in a simple and efficient way.
We demonstrate an ultrastable high-power laser system providing transform-limited 20-to-100 fs pulses at a tunable central wavelength. Subsequent frequency-conversion provides wavelength-tunable second and third harmonic radiation with up to 3.7 mJ.
We demonstrate arbitrary shaped UV picosecond pulses with energies up to 50 J at 272 nm. Temporal shaping is performed by a UV AOPDF allowing direct amplitude and spectral phase control.
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