Fundamentals of Plasmonics.- Electromagnetics of Metals.- Surface Plasmon Polaritons at Metal / Insulator Interfaces.- Excitation of Surface Plasmon Polaritons at Planar Interfaces.- Imaging Surface Plasmon Polariton Propagation.- Localized Surface Plasmons.- Electromagnetic Surface Modes at Low Frequencies.- Applications.- Plasmon Waveguides.- Transmission of Radiation Through Apertures and Films.- Enhancement of Emissive Processes and Nonlinearities.- Spectroscopy and Sensing.- Metamaterials and Imaging with Surface Plasmon Polaritons.- Concluding Remarks.

/pdf/plasmonics-fundamentals-and-applications-4syb9877sr.pdf

Plasmonics: Fundamentals and Applications

From molecules to crystal engineering: supramolecular isomerism and polymorphism in network solids.

This critical review will be of interest to the experts in porous solids (including catalysis), but also solid state chemists and physicists. It presents the state-of-the-art on hybrid porous solids, their advantages, their new routes of synthesis, the structural concepts useful for their ‘design’, aiming at reaching very large pores. Their dynamic properties and the possibility of predicting their structure are described. The large tunability of the pore size leads to unprecedented properties and applications. They concern adsorption of species, storage and delivery and the physical properties of the dense phases. (323 references)

Hybrid porous solids: past, present, future

Since the first application of the surface plasmon resonance (SPR) phenomenon for sensing almost two decades ago, this method has made great strides both in terms of instrumentation development and applications. SPR sensor technology has been commercialized and SPR biosensors have become a central tool for characterizing and quantifying biomolecular interactions. This paper attempts to review the major developments in SPR technology. Main application areas are outlined and examples of applications of SPR sensor technology are presented. Future prospects of SPR sensor technology are discussed.

Surface plasmon resonance sensors: review

Optical tweezers use the forces exerted by a strongly focused beam of light to trap and move objects ranging in size from tens of nanometres to tens of micrometres. Since their introduction in 1986, the optical tweezer has become an important tool for research in the fields of biology, physical chemistry and soft condensed matter physics. Recent advances promise to take optical tweezers out of the laboratory and into the mainstream of manufacturing and diagnostics; they may even become consumer products. The next generation of single-beam optical traps offers revolutionary new opportunities for fundamental and applied research.

http://physics.nyu.edu/grierlab/nreview2c/nreview2c.pdf

A revolution in optical manipulation

Two-photon-induced photopolymerization is useful for fabricating 3D micro/nano-structures with the resolution of the sub-diffraction limit. By using this method, photonic crystal was created with pre-compensation of shrinkage of photopolymer. On the contrary, the shrinkage was utilized to reduce the structure size. A micro-lens array was used to produce a mass of structures in parallel. Furthermore, metallization of the 3D polymer templates was conducted by electroless metal plating. These fabrication techniques are applicable to functional micro/nano devices.

Photopolymerization and Metalization for Fabricating Functional Devices and Metamaterials

Laser irradiation is a tool that can be used to remotely probe and control selected cellular dynamics. Femtosecond lasers are particularly attractive for the study of intracellular processes since they interact with the cell in a manner that is inherently localized and sterile. We have used femtosecond laser irradiation to generate Ca waves in cultured cells [1]. In order to understand the photogeneration mechanism, we have performed a variety of experiments, changing both laser parameters [2] and biochemical factors in the laser-cell interaction. This presentation will discuss factors involved in Ca wave photogeneration, and present new types of Ca waves that can be induced by controlling experimental parameters. As example of this is shown in Figure 1, where irradiation of a target cell membrane allows the influx of Ca chelator EGTA, suppressing the target cell Ca wave, while the cell-to-cell Ca wave signaling mechanism is not suppressed and surrounding cells undergo Ca elevation. Figure1: Cytosolic Ca wave induced by 13ms exposure to 50mW of focused 780nm irradiation in the cytosol (top image sequence) and on the membrane (lower image sequence), where a Ca rise occurs in cells around the target cell, and the target cell Ca wave itself is suppressed.

MECHANISMS AND APPLICATIONS OF FEMTOSECOND LASER-INDUCED Ca2+ ELEVATION IN LIVING CELLS

We observed intracellular transportation by using surface-enhanced Raman scattering (SERS) from gold nanoparticles moving in cytosol. Simultaneous detection of the nanoparticle position and SERS spectra enables us to visualize micelles associated with the transportation process.

Surface enhanced Raman scattering (SERS) imaging of intracellular transportation in 3D

A new dinuclear iron(III) complex, [Fe 2 (hpta)(Obz)(H 2 O) 2 ], where H 5 hpta is 2-hydroxy-1,3-propanediamine-N,N,N',N'-tetraacetic acid and HObz is benzoic acid, was prepared and characterized. X-Ray structure analysis revealed that the complex has mono-(μ-carboxylato)(μ-alkoxo) diiron(III) core and each iron atom has an NO 5 donor set in a distorted octahedron

Synthesis and Characterization of a New μ-Alkoxodiiron(III) Complex with NO_5 Donor Set Environments

Negative magnetic permeability of split ring resonator (SRR) is theoretically investigated in the optical frequency region. In our calculations, we considered the delay of the current inside the metal SRR in order to estimate the permeability of the SRR precisely; we used the complete formula of the internal impedance, which is valid to the visible range, to estimate the dispersion of both surface resistivity and internal reactance accurately. Our results indicates that in the optical frequency region, the effect of the internal reactance on the magnetic responses of the SRR is more dominant than that of the surface resistivity, because the surface resistivity is already saturated at the frequency lower than 100 THz. At the same time, the internal reactance does not saturate and moves away from zero drastically as frequency increases. From the results, we concluded that the silver SRR array with small capacitance exhibits negative permeability form THz to the visible light region. We also demonstrated that the array of the silver SRRs employing a single ring with divisions exhibits the negative μ at 428 THz (700 nm wavelength).

Satoshi Kawata

Papers

Photopolymerization and Metalization for Fabricating Functional Devices and Metamaterials

MECHANISMS AND APPLICATIONS OF FEMTOSECOND LASER-INDUCED Ca2+ ELEVATION IN LIVING CELLS

Surface enhanced Raman scattering (SERS) imaging of intracellular transportation in 3D

Synthesis and Characterization of a New μ-Alkoxodiiron(III) Complex with NO_5 Donor Set Environments

Negative permeability of split ring resonator in the optical frequency region