Water particles go through ultrafast dithering movements at room temperature level and generate exceptionally strong electrical fields in their environment. New experiments show how in existence of such fields totally free electrons are generated and controlled in the liquid with the help of an external terahertz field.
Researchers from the Max-Born-Institute in Berlin have actually now revealed that an external electric field with frequencies in the variety of 1 terahertz (1 THz = 10 ^12 Hz, around 500 times greater than a common cell phone frequency) improves the number of totally free electrons by up to element of1000 The THz field has a maximum strength of 2 MV/cm, that is less than 1% of the strength of the ever-changing field in the liquid. Along this direction, electrons generated by the changing field are being sped up and reach a kinetic energy of approximately 11 eV, the ionization potential of a water particle.
These unexpected results expose a new element of very strong electric fields in liquid water, the incident of spontaneous events of tunneling ionization. The experiments develop a novel approach for the generation, transport, and localization of charges in liquids with the assistance of strong THz fields.