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Lithium niobate opto-electro-mechanics

Grant number: 19/14377-5
Support type:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): August 01, 2019
Effective date (End): July 31, 2023
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Gustavo Silva Wiederhecker
Grantee:Caique Conde Rodrigues
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:18/15577-5 - Nonlinear nanophotonics circuits: building blocks for optical frequency synthesis, filtering and signal processing, AP.JP2


Lithium Niobate (LN) is a material with wide range of applications in optical and microwave technologies, owing to its unique properties that include large second order nonlinear susceptibility, large piezoelectricity, wide optical transparency, and high refractive index. Conventional LN devices, including fiber-optic modulators and periodically-poled frequency converters, have been the workhorse of the optoelectronics industry, while Surface-Acoustic-Wave (SAW) filters can be found in nearly every phone these days. Optical waveguides in these components are defined by ion-diffusion or proton exchange methods, which result in low index contrast and weak optical confinement. Integrated LN platform featuring sub-wavelength scale light confinement and dense integration of optical and electrical components, has the potential to revolutionize optical communication, microwave photonics, and SAW technology. In this PhD propostal we will explore hybrid opto-electro-mechanical resonators based on LN nanophotonic platform. (AU)