The restoration of teeth utilising composites still presents a myriad of clinical challenges for the dental clinician. This is especially true for extensively broken down teeth and as well, those teeth which have been accessed endodontically. Fibre posts such as the quartz Macro-Lock Illusion X-RO post (Recherches Techniques Dentaires—RTD) UniCore Fiber post (Ultradent), and DT Light-Post (RTD)...

UNLABELLED Atherosclerosis underlies coronary artery disease, the leading cause of death in the United States and worldwide. Detection of coronary plaque inflammation remains challenging. In this study, we developed a scintillating balloon-enabled fiber-optic radionuclide imaging (SBRI) system to improve the sensitivity and resolution of plaque imaging using (18)F-FDG, a marker of vascular infl...

We demonstrate improved performance in interfacing standard fibers with nanophotonic waveguides through a mechanically compliant polymer interface. We show -1.4dB peak transmission with 0.8dB penalty over the ~100nm bandwidth measured and all polarizations. OCIS codes: (130.3120) Integrated optics devices; (250.5300) Photonic integrated circuits Challenges in cost and scalability of photonic pa...

one of the most commonly used procedures in contemporary periodontics. Indications include: (1) lack of sufficient length of a clinical crown to ensure a tooth preparation for fixed prosthodontics with retentive and resistance form; (2) preexisting dental caries or restorations in the vicinity of the free gingival margins that prevent preparation of finish lines for restorative margins coronal ...

The equipment used in collecting insects is simple and inexpensive. The average collector usually will need only a few items : Nets, killing bottles, suction bottle, tweezers, scissors, small brushes, and insect pins. Many collectors prefer to make most of their own equipment even though most items may be purchased from commercial supply companies. The insect net is essentially a cloth bag hung...

We present a new approach in realizing multicore fibre fan-in/fan-out (FIFO) device. Using simple image demagnification by two fibre optic collimators a compact FIFO device for 4-core multicore fibre is fabricated with low crosstalk. Introduction One of the key optical components for space division multiplexed (SDM) transmission systems [1-3] is an efficient and stable SDM multiplexer/demultipl...

We demonstrate selective detection of hydrocarbons using a widely-tunable, rapidlyswept, high-resolution spectrometer based on a mid-infrared laser source using differencefrequency generation in periodically poled lithium niobate waveguides. ©2006 Optical Society of America OCIS codes: (120.6200) Spectrometers and spectroscopic instrumentation General; (190.2620) Frequency conversion Rapid, non...

The unprecedented growth in the telecommunications sector in the mid to late 1990’s saw a high demand in the area of optical packages and optical networks. This sudden growth in demand for optical technology in telecom and data communication applications could not be supported by the existing manufacturing infrastructure; so, to meet the growing volume needs of the industry – the electronics ma...

In the deformation and cutting process of semiconductors and ceramics, especially brittle materials such as silicon carbide (SiC), the presence of high pressure phase transformation (HPPT) is of great importance for accomplishing ductile regime machining (Patten, 2007). To augment the ductile regime machining of these nominally brittle materials, the high pressure phase can be preferentially he...