Vidal X. – TechConnect Briefs

Fast, robust and simple all optical far-field nano-positioning measurements

Juan M.L., Tischler N., Fernandez-Corbaton I., Zambrana-Puyalto X., Vidal X., Molina-Terriza G., QISS, AU

We present a novel method for the nano-positioning measurement of a sample relying on symmetry considerations. In particular, we exploit the cylindrical symmetry of a control defect appended to the sample. The exact nature of [...]

A Negative Index Metamaterial Waveguide for De-Multiplexing

Vidal X., Baev A., Furlani E.P., Prasad P.N., The Institute for Lasers, Photonics and Biophotonics, US

In this presentation, we propose a novel metamaterial-based waveguide coupler for use as a de-multiplexer at telecommunication wavelengths. Currently, there have been relatively few studies of guided modes in left-handed waveguides; these have indentified some [...]

Plasmon assisted two-photon direct laser writing of micro-structures composed of chiral Ag nanoparticles

Vidal X., Kim W-J, Baev A., S. Jee H., Tokar V., Swihart M.T., The Institute for Lasers, Photonics and Biophotonics, ES

We present an approach to produce micropatterns of metallic nanoparticles (NPs) that preserve key optical properties of the individual NPs. The technique uses a photothermal reaction induced by two-photon direct laser writing. The studied NP [...]

Laser Writing of Metallic Nanostructures in a Polymer Matrix with Applications to Metamaterials

Shukla S., Vidal X., Furlani E.P., Swihart M.T., Prasad P.N., Harvard University, US

We present a novel laser-based method for directly writing metallic nanostructures in a polymer matrix with sub-wavelength resolution [1]. The method involves two-photon lithography (TPL) in which a femtosecond-pulsed laser induces two-photon initiated in situ [...]