Maximizing intensity in TiO2 waveguides for nonlinear optics

Titanium dioxide (TiO2) represents an attractive candidate for nonlinear optical devices due to its large refractive index and large Kerr nonlinearity. These properties can strongly enhance confinement and nonlinear interactions. TiO2 also possesses high transparency, exhibiting no linear absorption within the entire visible spectrum and no two-photon absorption at wavelengths above 800 nm. Considering these qualities, TiO2 is capable of …