Nonlinear Plasmonic Devices by Magnetic Nano-Assembly

The proposed project will advance the physical principles and engineering concepts of compact nonlinear plasmonic devices. Magnetic nano-manufacturing of nanoparticle superstructures is proposed as a new platform for a broad range of nonlinear plasmonic devices such as all-optical switches, optical limiters, optical frequency converters, and others. Specific and verifiable advantages of our approach are as follows: (i) A broad and commercially viable manufacturing platform for the analysis, design and fabrication of various nonlinear plasmonic devices, including the specific device explored in Phase I: Nonlinear Non-reciprocal (One-Way) Optical Waveguide. (ii) Although the focus of the project is on devices, the proposed technological platform is also suitable for nano-fabrication of optical metamaterials, including ones with nonlinear characteristics. (iii) Inexpensive, and yet precise, assembly of complex nanoparticle superstructures that provide strong plasmonic field enhancement. (iv) Generality: particles of any kind (plasmonic, non-plasmonic, polymer, etc.) can be assembled in a reliable and reproducible way. Nano-assembly can be performed on surfaces (patterned or non-patterned) and/or in the bulk. (v) Advanced simulation techniques for the optical fields of plasmonic structures. Phase I involves innovative R&D devoted to feasibility analysis of compact nonlinear plasmonic devices with sizes compatible with electronic circuitry. We will optimize the design of a specific ultra-compact nonlinear plasmonic device – a Nonlinear Optical Diode, and will evaluate its potential photonic and electronic characteristics. We will demonstrate the feasibility of experimental assembly of such a device. In Phase II, design and material parameters of specific devices proposed in Phase I will be finalized. A prototype, ultra-compact plasmonic device will be fabricated and experimental observations will be conducted. Performance of the plasmonic device will be evaluated. A plan for future R&D and commercialization will be finalized and imple-mented.