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Meeting MS&T23: Materials Science & Technology
Symposium Mesoscale Phenomena in Functional Polycrystals and Their Nanostructures
Presentation Title Optical Behavior and Electro-optic Performance in Fine Grained Lead-free Ceramics
Author(s) Alexander D. Dupuy, Javier Garay
On-Site Speaker (Planned) Alexander D. Dupuy
Abstract Scope Electro-optic (EO) materials allow for the precise control of light using electrical signals, which is crucial for a number of photonic technologies. Composition limitations in electro-optic single crystals make bulk polycrystalline ceramics attractive for exploring new electro-optic materials. However, proper powder synthesis and densification methods are required for achieving the microstructures necessary for optical transparency. We demonstrate that powder synthesis and densification strategies can be modified to reduce optical scattering and significantly improve transparency in transparent lead-free 0.5Ba(Zr0.2Ti0.8)O3 0.5(Ba0.7Ca0.3)TiO3 (known as BZT-BCT or BXT) ceramics with grain sizes as small as 120 nm. Despite their fine grain size, these BXT ceramics retain a high electro-optic coefficient of rc = 136 pm/V. Additionally, we describe how the improvements in optical properties can be leveraged to enable greater control over sample geometry and electro-optic functionality.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Acoustic Phonon Spectra Modification and Light Emission Properties of Rare Earth Doped Polycrystalline Alumina
Bidirectional Dynamic Mechanical Writing of Polar Bubbles
Causality and Machine Learning Models of Ferroics From Atomistic Simulations
Characterization of Phase and Domain Switching in Sn-doped BCZT Piezoceramics with Large Electromechanical Strains
Computer Simulation as a Tool to Optimize Electronic Conduction.
D-17: Alchemy of Graphite: The Many Faces of Coal
D-18: High-throughput Approach for Predicting Optical Properties of Crystals
D-19: Numerical Analysis of the Influence of the Second-phase Particle Morphology on the Alloy Microstructure Evolution
Enhanced Electron Transport in Metal-Carbon Composites
Heat-assisted Ferroelectric Reading for High Speed Ultrahigh-density Ferroelectric Data Storage
Hierarchical Ceramic Composites for Ultra-high Temperature Applications
Liquid Crystalline Diffractive Waveplates: Ultrathin, Planar Optics
Mesoscale Dipoles via Strain Induced Correlations in an Atomic-layer Superlattice
Modeling Local Dielectric Dispersion in Ferroelectric BaTiO3 with Domain Walls
Modeling Thermoelectric Figure of Merit in Complex Materials at Mesoscale
Optical Behavior and Electro-optic Performance in Fine Grained Lead-free Ceramics
Optical Properties of Chalcophosphate Materials in the Visible and Infrared Range
Strain-tuned Quantum Materials
Structure Property Relationships in Complex, Multi-phase, Polycrystalline Materials

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