Abstract: Methods and systems for direct-write liquid phase epitaxy of ionic materials are provided for herein, and relate to the manufacture of metal halide optics among other applications. Deposition of the ionic material is induced by mixing at least two fluids of differing composition, wherein the solubility limit of the ionic material in the mixed solution is lower than predicted from a linear combination of the original fluids. This deposition process is spatially controlled using a printhead, enabling localized material deposition and the ability to create arbitrary geometries in turn. In some cases, at least one of the fluids is saturated with the ionic material and surrounds the substrate upon which deposition occurs.

Abstract: Methods and systems for high fidelity electrical tomographic processes are provided for herein. Specifically, the use of a purpose-selected fluid configuration is described, used to fill the void space between mechanically fixed sensing electrodes and the target object to sense and reconstruct. In some embodiments, this fluid configuration enhances or masks changes in electrical measurements in response to certain materials known or suspected to exist within the sensed volume. In other embodiments, a plurality of fluid configurations may be employed to improve the quality of reconstruction, or resolve additional spatial dimensions. Exemplary applications in medicine and manufacturing are also provided.