Study of ferroelectric SBN thin films for electro-optic applications

The Ferroelectric strontium barium niobate (SBN) thin films are prepared using Pulsed Laser Deposition (PLD) technique. XRD spectra of the prepared films indicate the polycrystalline growth confirming the formation of tetragonal tungsten bronze structure. A waveguide is fabricated so as to guide the light in SBN thin film. The EO measurements for the SBN thin films have been carried out using Senarmont Compensation method in order to examine the dynamic variation of EO coefficient of the prepared films. The value of dynamic EO coefficient is found to be 198pm/V.