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.

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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

New lanthanoid-iron 2,2′-bipyridine (bpy) and 2,2′:6′,2″-terpyridine (terpy) complexes have been investigated by a variable temperature Mossbauer spectroscopy and a single crystal structure analysis The crystal structures of Ln-bpy (Ln = La, Nd and Eu) and Eu-terpy complexes were determined as follows; {[Ln(bpy)2(H2O)4]2[(μ-NC)2Fe(CN)4]}[Fe(CN)6]·8H20 (Ln = La and Nd), {[Eu(bpy)(H2O)4][(μ-NC)2Fe(CN)4]·15bpy·4H2O]}x and {[Eu(terpy)(H2O)4][(μ-NC)2-Fe(CN)4]}x, respectively The structure of Eu-complexes consists of one-dimensional zig-zag chain polymer While La- and Nd-bpy complexes consist of discrete {[Ln(bpy)2(H2O)4]2[(μ-NC)2-Fe(CN)4]}3+ (Ln = La and Nd) cation and [Fe(CN)6]3− anion The temperature dependences of 151Eu-Mossbauer spectral area for Eu-complexes lay between those of three-dimensional polymer and monomeric molecular compounds

Synthesis and 57Fe and 151Eu Mössbauer Spectroscopic Studies of New Lanthanoid-iron Complexes

We will present a new result on near field effects seen in tip-enhanced Raman microscopy. In addition to electromagnetic and chemical effects of the Raman signal, we have observed spectral shift as a mechanical effect.

Near-Field Effects in Tip-Enhanced Raman Microscopy

Negative index material is expected to exhibit interesting optical properties. Especially, superlens effect, which is predicted by John B. Pendry in 2000, is very attractive to overcome the diffraction limit in optical imaging [1]. Although there is no negative index material in nature, Pendry numerically suggested that several metals, only dielectric constant is negative at optical frequencies, behave like a superlens under the electrostatic limit and for the p-polarized fields. X. Zhang experimentally demonstrated this superlens effect by constructing nanolithography system with silver thin film in 2005 [2]. In this presentation, we newly propose a sub-wavelength imaging system at optical frequency regime in an array of metallic nanorods [3]. The near-field components of dipole sources were plasmonically transferred through the rod array to reproduce the image of the dipoles in the other side. We calculated the field distribution at the different planes of imaging process using the finite-difference time-domain (FDTD) algorithm and found that the spatial resolution was 40 nm, which was much beyond the diffraction-limit and was limited by the array pitch. The typical configuration is a hexagonal arrangement with 40 nm periodicity of silver rods of 50 nm height and 20 nm diameter. The image formation highly depends on the coherence and the polarization of the dipole sources, array pitch, and the source-array distance. The principle of our near-field imaging is based on the longitudinal resonance of the localized surface plasmon along a metallic nanorod. The spectral responses of the device are also investigated.

https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1946427400088138

Sub-wavelength Imaging through Metallic Nanorod Array

Scientific research is constantly moving from the “microscale” to the “nanoscale”. In order to probe and study nano-sized samples, signal enhancing analytical techniques with high chemical sensitivity and spatial resolution have been developed, such as tip-enhanced Raman scattering (TERS). Generating an enhanced field at nanoscale volumes, however, also means that undesired laser-induced heating is enhanced, especially near the vicinity of the tip apex as in the case of TERS, which has only been reported by several groups [1-3]. Therefore, it is important to be able to determine the temperature at the sample and the temperature changes that occur, particularly in the low temperature regime (< 100 ̊C) for proper data analysis and prevention of tip and sample damage. Here we present an all-optical method called tip-enhanced THz-Raman spectroscopy (TE-THzRS, THz-Raman < 200 cm) for determining temperatures at the nanoscale [1]. In this contribution, we studied the heat transferred from the tip-enhanced electric field to single walled carbon nanotubes (CNTs) via heat conduction and radiation. Heating modulates the intensity ratio of anti-Stokes/Stokes Raman ! nAS / ! nS ( ) – in photon count rates – scattering of the radial breathing mode (RBM, ω R ) of the CNTs and the sample temperature (T ) following the Boltzmann distribution:

An all-optical method for determining temperature at the nanoscale via tip-enhanced THz-Raman spectroscopy

The theory, instrumentation and applications of three-dimensional microfabrication are given with a variety of examples. Structures shown include: SEM images of a 10 /spl mu/m bull and a micro-spring; a self-grown filament by the single photon process; self-merging of two fibers, and splitting into many fibers; and a photopolymer photonic crystal from the top and side views.

http://ieeexplore.ieee.org/iel5/7647/20879/00967843.pdf

Satoshi Kawata

Papers

Synthesis and 57Fe and 151Eu Mössbauer Spectroscopic Studies of New Lanthanoid-iron Complexes

Near-Field Effects in Tip-Enhanced Raman Microscopy

Sub-wavelength Imaging through Metallic Nanorod Array

An all-optical method for determining temperature at the nanoscale via tip-enhanced THz-Raman spectroscopy

Three-dimensional micro-fabrication with two-photon and single-photon polymerization