Materials Literature
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Single nanoparticles made of noble metals are strongly appealing to develop practical applications to detect fluorescent molecules in solution. Here, we detail the use of a single gold nanoparticle of 100 nm diameter to enhance the detection of single Alex Fluor 647 fluorescent molecules at high concentrations of seve…
The dispersion equation for surface plasmon-polariton (SPP) waves excited in a composite structure obtained by depositing a columnar thin film (CTF) on a metal (silver) substrate decorated periodically by an array of rectangular grooves was analyzed using rigorous coupled-wave approach. Only one solution of this dispe…
Since their inception, metamaterial fishnet structures have frequently been used to exhibit a negative refractive index. Their shape and structure make it possible to independently produce both a negative permeability (μ) and a negative permittivity (ε). Fishnets that display this characteristic can be referred to as…
Titanium oxide (TiO2) thin films have been deposited by a DC sputtering technique onto microscope glass slides. The effect of substrate temperature (Ts) and target-substrate distance (Dts) on some optical and electrical properties have been studied each individually. The structure of TiO2 thin films has been improved…
Figure 11.1 NanoSight LM10 instrument and operation of NTA. (A) Image of the NanoSight LM10 NTA instrument. (B) NanoSight instrument configuration. (C) Video capture of light scatter from particles moving under Brownian motion. (D) Tracking of individual particles using NTA; white spot = visualization of particle; red…
This paper describes our work to characterize the variables affecting the smoothed particle hydrodynamics (SPH) method in the LS-DYNA package for simulating high-velocity flyer plate impact experiments. LS-DYNA simulations are compared with one-dimensional experimental data of an oxygen-free highconductivity (OFHC) co…
With the continuously increasing demand for traceable and often accredited measurements in the scientific community, the quality management of laboratory activity according to international ISO standards can be a valuable and proficient solution. In this paper, we describe a decade of work in this direction. The imple…
Based on the extensive application of 2 × 1.7MV Tandetron accelerator, a low-energy cluster chamber has been built to explore for synthesizing graphene. Raman spectrum and atomic force microscopy (AFM) show that an amorphous carbon film in nanometer was deposited on the silicon by C4 cluster implantation. And we repla…
The highly confined nature of the fields from surface plasmons makes them excellent candidates for future nano-optical devices. Most often, optical excitation is used to excite surface plasmons. However, a local, low energy, electrical method for surface plasmon excitation would be preferable for device applications.…
Germanium (Ge) nanoclusters are grown by a molecular-beam epitaxy technique on chemically oxidized Si(100) surface at 700ºC. Evidence for long-term photoinduced changes of surface conductivity in structures with Ge nanoclusters (NCs) grown on silicon oxide is presented. Photoexcitation NCs or Si by quanta with differe…
This paper presents a new engineering model on the air blast wave of TNT explosive. The model is built and the parameters are calibrated based on numerical simulated pressure time data of shock wave in air. The model describes the peak overpressure, impulse, typical time and attenuation coefficient of the shock wave w…
GaN-based light-emitting diode (LED) was successfully fabricated using surface plasmons (SPs) excited at the metal/semiconductor interface. Normally, SPs excited by the interaction between light and metal surfaces were known to enhance the internal quantum efficiency of LEDs via the quantum-wells (QWs) and SPs couplin…
The production of special fibers relies on new methods and materials to incorporate new functionalities into optical fibers by virtues of dopants and structure. In particular, the granulated silica method allows to rapidly produce active fibers with high dopant content and with virtually any microstructure. The implem…
In the investigation of the sensing performance based on localized surface plasmon resonance (LSPR), the bulk sensitivity, which is the spectral shift per refractive index unit upon the change of the surrounding index to spatial infinite, is often measured and considered as the indication of the sensing ability. To th…
Electron beam lithography becomes attractive also for the fabrication of large scale diffractive optical elements by the use of the character projection (CP) technique. Even in the comparable fast variable shaped beam (VSB) exposure approach for conventional electron beam writers optical nanostructures may require ver…
Here we show the way to easily tune and engineer the optical response of hybrid structures composed by self ordered dielectric nanospheres partially covered by anisotropic plasmonic structures. The overall structure is a hybrid plasmonic-photonics nanostructure acting as a meta-surface witch morphology allows efficien…
Blue emitting GaN‐based light emitting diodes (LEDs) show a distinct spectral behavior with respect to temperature and injection current density. Operating LEDs with short current pulses of 500 ns provides a steady state situation, which allows investigating the emission behavior of LEDs at a certain device temperatur…
Abstract Organic electronic materials, or amorphous electronic materials in general, have relatively low conductivity and this limits their application to the low‐frequency electronics market. To describe electronic conduction in these materials it is common to use percolation [1] or (variable range) hopping theory [2…
Investigation of polarized IR reflectance spectra of single crystals is important in the course of obtaining vibrational, optical and dielectric properties of solid state samples. Diffraction X-ray methods are usually employed for crystal orientation. In this work, two IR reflectance methods are proposed as a suppleme…
The energy crisis has become a global problem, scarcity and fuel price increases, renewable energy is seen as one way to solve the global energy crisis. Microbial Fuel Cells (MFC) is a system of generating electrical energy by utilizing bacterial interactions found in nature. Bacteria contained in the organic medium t…