My research interests straddle the line between magnetism and photonics and cover investigation of the mechanisms allowing ultrafast (one trillionth of a seconds and faster) coupling between light and magnetically ordered media. Particularly, I aim to reach a regime of optical writing of information in magnets with minimally possible dissipation of energy. This requires to use pulses of light with photon energies matching the energy scale of the magnetic interactions, which is in a meV regime. This energy scale corresponds to THz frequencies. Therefore I employ THz light to study and control the magnetization dynamics at the highest possible speed.