Pascal Del Haye, National Physical Laboratory, UK
Prof Lan Yang, Washington Univ., USA
Ewold Verhagen, AMOLF, Netherlands
Nonreciprocal photonics has been a rapidly growing research field in recent years. This is motivated by a strong demand for nonreciprocal elements in upcoming generations of integrated optical circuits. In particular, the increasing complexity of photonic circuits and their combination with chip-based laser sources requires new optical elements, e.g. for efficient optical isolators and circulators. On the fundamental physics side, research on optical nonreciprocity has led to many new insights on interaction of light with complex media, optomechanical systems and nonlinear materials. This special symposium aims to provide a forum for discussing the various different means of achieving optical nonreciprocity as well as related applications. This includes nonreciprocity and unidirectional transmission phenomena based on Kerr nonlinearity, optomechanical systems, metamaterials, integrated magneto-optical devices, PT symmetric systems, Brillouin scattering, topological protection, spin-orbit coupling and through other nonlinear optical effects. Beyond the fundamental physics of optical nonreciprocity, this symposium also addresses applications of nonreciprocity e.g. for sensors, integrated photonic circuits and in laser systems.