Materials Literature
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Since the first proposal of the idea of optical cloaking, huge research effort has been spent to implement hiding objects. We propose a broad band all-dielectric partial (unidirectional) cloaking device that hides arbitrary shaped objects. The cloaking structure is designed utilizing graded index (GRIN) photonic cryst…
This contribution is focused on the optimal fibre content in the ultra-high performance fibre reinforced concrete (UHPFRC) mixture with respect to the residual velocity of the non-deformable projectile after perforating the UHPFRC slabs. Impact velocity of the non-deformable projectile was in the range of 700 m/s. The…
The main goal of our research was to investigate the optical properties of nanocomposites, created by combining titanium dioxide with noble metals. Our research was focused on silver Ag, which reveals strong plasmonic effects in the visible spectrum, and rutile TiO2 - a commonly used semiconductor material that does n…
Erbium-doped Polymer hybrid slot waveguide amplifier at λs=1530 nm with a 1480 nm pumping wavelength is investigated. Both, the waveguide structure parameters and the Er3+-doped polymer intrinsic spectroscopic parameters are swept to analyze the gain contribution sensitivities. Assuming moderate optical transmission l…
Three-dimensionally (3D) ordered macroporous materials combine interesting structural and optical properties. Accessible and economic fabrication is essential to fully explore the unique possibilities these materials present. A common method to fabricate 3D ordered macroporous materials is by self-assembling colloids,…
We investigate quantum dots (QDs) of ternary compounds CdXHg1-XSe with 0 XHg1-XSequantum dots.
Al doped ZnO (AZO) thin films were synthesised on single crystal silicon and quartz glass substrates by pulsed laser deposition method at different O2 partial pressure. The structure, composition, optical and electrical properties in AZO thin films were investigated. With the increase in O2 partial pressure, the cryst…
Chalcogenide glasses are amorphous semiconductors with a number of interesting properties required for photonic devices. Particularly, their optical properties can be tuned through the change of the glass composition. We investigate second-order nonlinear optical properties of chalcogenide glass (Ge27Se64Sb9) thin fil…
Sub-wavelength dielectric gratings can be used to achieve phase retardation. Due to the vector nature of the devices, scalar theory is not applicable and rigorous calculation methods are required. The modal method proves to be a simple but powerful compromise, between rigorous techniques that are computationally expen…
Polymers with individually adjusted optical and rheological properties are gaining more and more importance in industrial applications like in information technology. To modify the refractive index n, an electron-rich organic dopant is added to a commercially available polymer based resin. Changes in viscosity for app…
The evaluation of electromagnetic material parameters from metamaterial structures has received much attention in the literature. Among others, one method is to retrieve the material parameters from the reflection and transmission measurements of the sample material. It has been found that the electromagnetic material…
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.…