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Chapter
A Framework for Software Fault Tolerance in Real-Time Systems
Real-time systems often have very high reliability requirements and are therefore prime candidates for the inclusion of fault tolerance techniques. In order to provide tolerance to software faults, some form o...
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Article
The mechanical properties of ceramics from bauxite waste
This paper summarizes the development of engineering ceramics made from bauxite waste (“red mud”) produced in the alumina industry in Jamaica. Test specimens are fabricated from powders by sintering. For a par...
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Article
Patents and literature
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Chapter
Application of the Shifrin Inversion to the Malvern Particle Sizer
The Malvern Particle Sizer was developed by J. Swithenbank et al.1 in 1977, and has been extensively used since then for measuring the size distribution of solid particles and droplets. The reproducibility of res...
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Article
Nanoindentation experiments on some amorphous hydrogenated carbon (a-C:H) thin films on silicon
Ultra-low-load indentation (nanoindentation) experiments have been used to investigate the load-displacement characteristics of two types of hydrogenated carbon films (a “hard” and a “soft” version ∼230 and ∼2...
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Chapter
Characterising Whispering-Gallery Modes In Microspheres Using A Near-Field Probe
We use scanning near-field optical microscopy to study the spatial structure of electromagnetic resonance modes in a high-Q dielectric microcavity of the whispering-gallery mode type. Direct observation of the...
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Chapter
Near Field Optics with High-Q Whispering-Gallery Modes
High-Q whispering-gallery modes (WGM) are resonant electromagnetic modes which can be observed in dielectric microspheres with diameters larger than about ten times the wavelength [1]. They correspond to high ...
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Chapter and Conference Paper
From Scattering to Waveguiding: Photonic Crystal Fibres
Photonic crystals are formed of a regularly patterned microstructured material, with a pitch comparable to the optical wavelength. These materials exhibit unusual optical properties due to the interference of ...
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Article
Two Cases of Pulmonary Complications Associated with a Recently Recognised Salmonella enteritidis Phage Type, 21b, Affecting Immunocompetent Adults
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Article
Microstructured Silica as an Optical-Fiber Material
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Article
Absolute frequency measurement of iodine lines with a femtosecond optical synthesizer
We have used a single laser femtosecond optical frequency synthesizer together with a widely tunable Nd:YAG laser to measure the absolute frequency of several absorption lines in molecular iodine around 532 nm...
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Article
Predator-Mediated Coexistence of Exotic and Native Crustaceans in a Freshwater Lake?
The predatory effects of a Dipteran insect, Chaoborus, on the competition between exotic cladoceran Daphnia lumholtzi and two natives, D. catawba and D. pulex, were studied for a period of three years in a freshw...
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Article
Transformation and control of ultra-short pulses in dispersion-engineered photonic crystal fibres
Photonic crystal fibres (PCFs) offer greatly enhanced design freedom compared to standard optical fibres. For example, they allow precise control of the chromatic dispersion (CD) profile—the frequency dependen...
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Article
Maximization of supercontinua in photonic crystal fibers by using double pulses and polarization effects
We show with sub-20 fs pulses both experimentally and theoretically two techniques to control the width and polarization of spectral supercontinua generated in photonic crystal fibers. The first exploits doubl...
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Article
Increased in vivo transcription of an IL-8 haplotype associated with respiratory syncytial virus disease-susceptibility
Interleukin-8 (IL-8) has been implicated in the pathogenesis of RSV-induced bronchiolitis. Previously, we have described an association between bronchiolitis disease severity and a specific IL-8 haplotype comp...
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Chapter and Conference Paper
Spectral-temporal soliton dynamics analysis near second zero-dispersion point in photonic crystal fibers
The propagation dynamics of an ultrashort optical pulse near the second zero-dispersion point of a small-core high-delta photonic crystal fiber is investigated using cross-correlation frequency-resolved optica...
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Article
Compact, stable and efficient all-fibre gas cells using hollow-core photonic crystal fibres
Gas-phase lasers small enough to fit in a credit card or hand-held laser pointer could soon become a reality. A hollow-core photonic crystal fibre based gas cell has been developed, containing a tenth of a mic...
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Article
Control of dispersion in photonic crystal fibers
Photonic crystal fibers (PCFs) exploit the large index difference between air and glass to achieve modal properties unattainable by conventional fiber techniques.
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Article
Stimulated Brillouin scattering from multi-GHz-guided acoustic phonons in nanostructured photonic crystal fibres
Wavelength-scale periodic microstructuring dramatically alters the optical properties of materials. An example is glass photonic crystal fibre1 (PCF), which guides light by means of a lattice of hollow micro/nano...
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Chapter and Conference Paper
Phase-sensitive resonance in scattering of continuous waves on femtosecond solitons in photonic crystal fibers
Using cross-correlation frequency-resolved optical gating we observe the phase-sensitive resonance in the interaction of a soliton with a continuous wave in a birefringent photonic crystal fiber, which leads t...
