Quasi-phase-matched second harmonic generation in silicon nitride ring resonators controlled by static electric field.
Research
RF Safe Research Library
Jan 1, 2013
This paper proposes and simulates actively-controlled second harmonic generation in a silicon nitride ring resonator. Quasi-phase matching is induced by a periodic static electric field generated by voltage applied to electrodes along the ring. Simulations report a calculated efficiency of -21.67 dB at 60 mW pump…
Surface-induced nonlinearities of liquid crystals driven by an electric field.
Research
RF Safe Research Library
Jan 1, 2008
This experimental physics study examines how a static electric field affects the optical nonlinearity of methyl-red doped nematic liquid crystals. The authors report that low voltages below the Fredericks transition threshold can change the optical nonlinearity by orders of magnitude. They state that the data fit a…