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Article
Effects of whispering gallery mode in microsphere super-resolution imaging
Whispering Gallery modes have been presented in microscopic glass spheres or toruses with many applications. In this paper, the possible approaches to enhance the imaging resolution by Whispering Gallery modes...
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Article
Open AccessCreation of an anti-imaging system using binary optics
We present a concealing method in which an anti-point spread function (APSF) is generated using binary optics, which produces a large-scale dark area in the focal region that can hide any object located within...
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Article
Open AccessA sensitive optical micro-machined ultrasound sensor (OMUS) based on a silicon photonic ring resonator on an acoustical membrane
With the increasing use of ultrasonography, especially in medical imaging, novel fabrication techniques together with novel sensor designs are needed to meet the requirements for future applications like three...
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Chapter and Conference Paper
Lowering the Cross Correlation between Different Shape Parameters of the Inverse Grating Problem in Coherent Fourier Scatterometry
Angular Fourier Scatterometry techniques to solve inverse-grating problems have been widely used in semiconductor metrology since the initial work by den Boef et al. [1] because it is simple, fast and robust a...
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Article
Open AccessPerformance analysis of coherent optical scatterometry
Scatterometry is a well established technique currently utilized in research, as well as in industrial applications, to retrieve the properties of a given scatterer (the target) by looking at how the light com...
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Chapter and Conference Paper
A Comparison of Enthalpy and Temperature Methods for Melting Problems on Composite Domains
In optical rewritable recording media, such as the Blu-ray Disc, amorphous marks are formed on a crystalline background of a phase-change layer, by means of short, high power laser pulses. It is of great impor...
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Article
On the determination of dopant-concentration profiles by grazing emission X-ray fluorescence spectroscopy using the maximum-entropy method
The determination of concentration profiles of impurities in silicon from angle scans of emitted x-ray fluorescence intensities using the maximum-entropy method is studied. Existence and convergence properties...
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Chapter
Hybrid Recording
For conventional longitudinal magnetic disk recording the maximum attainable areal bit density is expected to reach its physical limits around 100 Gbit/inch2 [1]. In laboratory demonstration systems this density ...
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Chapter
Nonlinear Hyperbolic Systems in Chromatography
The mathematical theory of nonlinear hyperbolic systems is applied to the modelling of chromatography. The elegant ω or h transformation which can be applied to the ideal Langmuir model of chromatography, is expl...
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Chapter and Conference Paper
On-line manufacturing of Si solar cells compatible with high speed Si-ribbon growth
For the terrestrial photovoltaic application in the gigawatt range new on-line processing steps are necessary. Applying a new production process for the pn-junction large area (10 cm x 10 cm) mono-crystalline ...
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Chapter and Conference Paper
A Functional Analytic Approach to an Optimization Problem of Hydrodynamic Propulsion
Several problems in the optimization theory of hydrodynamic propulsion are also of interest to the mathematician. The aim of the research is to determine for a given propulsive device such as a propeller or a ...
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Chapter and Conference Paper
Removal of Carbon and SiC from Silicon Prepared by Advanced Carbothermic Reduction
High-purity silica and carbon were employed as starting materials to produce solar-grade silicon by carbothermic reduction. To remove carbon and SiC-particles from the silicon melt, the p-type material was sub...
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Article
New methods to prepare high-purity silica
Two methods are described to prepare high-purity silica to be employed as a low-cost starting material for solar-grade silicon production. In the first process, abundantly available quartz sand is purified by ...
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Chapter and Conference Paper
Production of Solar Grade Silicon in an Arc Furnace Using High Purity Starting Materials
The carbothermic reduction of silica has been adopted to produce solar-grade silicon using high-purity raw materials. Inexpensive and abundant quartz sand is purified by fusing it with glass-forming oxides to ...
