Kevin Vora

Fabrication of Structured Nanocomposite Materials for Three-Dimensional Metamaterial Applications, at MRS Fall Meeting 2012 (Boston, MA), Wednesday, November 28, 2012
Fabrication of Structured Nanocomposite Materials for Three-Dimensional Metamaterial Applications We present a technique that combines top-down and bottom-up nanofabrication approaches to create a structured nanocomposite material. The structured nanocomposite material consists of three-dimensional (3D) silver nanostructures embedded inside a doped polymer matrix. The positioning of silver structures within the matrix is controlled via femtosecond laser irradiation. The key is to use a material combination that yields a stable background dielectric matrix while allowing nanostructure growth... Read more about Fabrication of Structured Nanocomposite Materials for Three-Dimensional Metamaterial Applications
Three-dimensional silver nanostructure fabrication through multiphoton photoreduction, at Photonics West 2012 (San Francisco, CA), Tuesday, January 24, 2012:
We present an ultrafast laser technique for 3D direct-writing silver nanostructures embedded in a dielectric. We induce the photoreduction of silver ions through non-linear absorption in a solution doped with silver salts. Nonlinear optical interactions between the chemical precursors and femtosecond pulses limit silver-ion photoreduction processes to a focused volume smaller than that of the diffraction-limit. Our technique creates dielectric-supported silver structures, enabling the nanofabrication of silver patterns with disconnected features in 3D. We obtain sub-300 nm resolution and... Read more about Three-dimensional silver nanostructure fabrication through multiphoton photoreduction

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