Home About us About us Research at the Max Planck Institute of Quantum Optics Light can behave as an electromagnetic wave or a shower of particles that have no mass, called photons, depending on the conditions under which... more The History of the Institute Please find information on the history of the Max Planck Institute of Quantum Optics on the following pages! more Administration and scientific services The service groups play a key role at MPQ: they provide the infrastructure necessary for outstanding scientific research. more Staff Visiting Researchers Spin-off Companies