Plasmonic nanostructure

Ray, K., Badugu, R., and Lakowicz, J. R. (2007). Polyelectrolyte Layer-by-Layer Assembly To Control the Distance between Fluorophores and Plasmonic Nanostructures. Chemistry of Materials 19 5902-5909. 

The fluorescence amplification provided by the plasmonic nanostructures has been shown to be applicable to many fluorophores. Hence fluorophores currently employed in assays would still be suitable. However, the use of low quantum yield fluorophores would lead to much larger fluorescence enhancements (i.e. 1 / Qo) and could significantly reduce unwanted background emission fi om fluorophores distal fi om the metallic surface. 

Metal-Enhanced Fluorescence of Phycobiliproteins from Heterogeneous Plasmonic Nanostructures. J. Phys. Chem. C 111 18856-18863. 

Combining FCS with fluorescence lifetime measurements turns out to be very efficient in resolving the contributions of excitation and emission to the overall fluorescence process. This procedure can be straightforwardly extended to other types of plasmonic nanostructures, as long as the observation volume is well defined. The limit of this method is that all the presented results account for spatial averaging over all the possible molecular orientations and positions inside the analyzed volume. 

Camden JP, Dieringer J, Zhao J, Van Duyne RP (2008) Controlled plasmonic nanostructures for surface enhanced spectroscopy and sensing. Acc Chem Res 41 1653... 

Das G, Mecarini F, Deangelis F, Prasciolu M, Liberale C, Patrini M, Difabrizio E (2008) Attomole (amol) myoglobin Raman detection from plasmonic nanostructures. Microelectron Eng 85 1282-1285... 

There are numerous examples where micro-Raman technique was employed to probe the enhancement of individual plasmonic nanostructures. Gunawidjaja and... 

Plasmonic nanostructures that are materials consisting of noble metal nanoparticles with sizes of 1-100 nm are known as specific substrates for surface enhanced Raman scattering and luminescence enhancement [1-4]. These effects are stimulated by the localized surface plasmon absorption (LSPA) and may be controlled by the change of metal nanoparticle sizes, their concentration and a substrate choice [5]. New opportunities for surface-enhanced effect realization and optimization are now discussed in connection with bimetallic nanostructures [6]. At the technological aspect one of the simplest types of a binary nanostructure is a stratified system made of two different monolayers, each is consisted of definite metal nanoparticles. The LSPA properties of these binary close-packed planar nanostructures are the subject of the paper. 

Large-area gold/parylene plasmonic nanostructures can be fabricated by direct nanocutting [130],... 

Ferry, V.E., Sweatlock, L.A., Pacifici, D., Atwater, H.A. Plasmonic nanostructure design for efficient light coupling into solar cells. Nano Lett. 8,4391-4397 (2008)... 

Near-Field Optical Imaging of Wavefunctions and Optical Fields in Plasmonic Nanostructures... 

Abstract Plasmonic nanostructures exhibit unique optical properties, and fundamental studies of these structures are relevant to wide range of research areas, both fundamental and applied. Potential applications of the plasmonic nanostructures originate from their ability to confine (and sometimes propagate as well) optical fields in nanometer scales, and are closely related to the static and dynamic properties of plasmonic waves. In this chapter, visualization of wavefunctions and optical fields in plasmonic nanostructures using near-field linear and non-linear optical methods is described. 

On the other hand, silica is often used as an insulating layer when direct communication between different components of a complex systems has to be avoided. For example, for a few years an unprecedented method has been proposed for increasing the efficiency of energy transfer exploiting the effect of plasmonic nanostructures [138-140]. In this systems contact of the fluorophores with the metal (usually silver) must be prevented since it would result in excitation energy dissipation and, most importantly, the increase in the efficiency of the energy transfer can be obtained only if the metal nanostructure is localized at a optimal distance. 

Wet-Chemical Synthesis Techniques for Colloidal Plasmonic Nanostructures Assisted by Convective or Microwave Dielectric Heating... 

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