Without electronics and photonics, there would be no
computers, smartphones, sensors, or information and communication
technologies. In the coming years, the new field of phononics may
further expand these options. That field is concerned with
understanding and controlling lattice vibrations (phonons) in
solids. In order to realize phononic devices, however, lattice
vibrations have to be controlled as precisely as commonly realized
in the case of electrons or photons.

