Microwave-Based Optomagnetics in Superconductors

The optomagnetic effect is mainly known as a nonlinear optical phenomenon in light of the inverse Faraday effect (IFE), i.e. the generation of static magnetization by circularly polarized

light. This work introduces the physics and applications of IFE in superconducting condensate using a circularly-polarized microwave field below its second phase transition. By finding the gyration coeeficient in superconducting state, I explore a range of phenomena such as microwave birefringence and microwave-induced Hall effect in superconducting state. The pecularity associated with the inverse Farday effect in superconductors will be highlighted and compared with other materials specially metals and insulators. Microwave-based IFE is then proposed for controlling flux quantization and vortex-state in type II superconductors. Proposed experiments and potential applications of microwave-optomagnetics in superconductors will be elaborated.