Mazur, EricEvans, Christopher Courtney2013-10-182013-10-182013Evans, Christopher Courtney. 2013. Nonlinear optics in titanium dioxide: from bulk to integrated optical devices. Doctoral dissertation, Harvard University.http://dissertations.umi.com/gsas.harvard:11167http://nrs.harvard.edu/urn-3:HUL.InstRepos:11181139In this thesis, we explore titanium dioxide (TiO2) for ultrafast, on-chip nonlinear optics by studying it in bulk, thin films, and in integrated nonlinear optical devices. TiO2's large nonlinear index of refraction (30 times that of silica) and low two-photon absorption can enable all-optical switching, logic, and wavelength conversion across wavelengths spanning the telecommunications octave (800–1600 nm). In addition, its high linear index of refraction can enhance optical confinement down to nano-scale dimensions and facilitate the tight waveguide bends necessary for dense on-chip integration. Throughout this thesis, we develop TiO2 as a novel on-chip nonlinear optics platform.en-USPhysicsOpticsintegrated opticsnonlinear opticstitanium dioxideThesis or Dissertation2013-10-18