Hyper-Rayleigh scattering (HRS) is an incoherent mechanism for optical second harmonic generation. The frequency-doubled light that emerges from this mechanism is not emitted in a laser-like manner, in the forward direction; it is scattered in all directions. The underlying theory for this effect involves terms that are quadratic in the incident field and involves an even-order optical suscepti...

Abstract We report the synthesis and physical properties of single crystals TaC, which are proposed to hold topological band structure as a superconductor (TSC) candidate. Magnetization, resistivity specific heat measurements performed indicate that TaC is bulk with critical temperature 10.3 K. strongly coupled type-II superconducting state can be well described by s -wave Bardeen–Cooper–Schrie...