Enroute to investigating protein dynamics under selective vibrational excitation at the THz FEL FELBE

We aim at investigating proteins under the irradiation with intense THz radiation tuned in resonance to specific vibrational modes. This approach is much in analogy to recent experiments that showed selective vibrational control in complex materials [01, 02, 03]. To achieve the necessary sensitivity for protein dynamics we combine a novel time-resolved IR difference spectroscopic setup with uniquely intense, tunable narrow bandwidth THz radiation (1.2 – 66 THz) of the THz free electron laser FELBE.