linear filters are used for a wide range of magnetic science including noise attenuation, spatial derivatives, upward and downward continuation and reduction to the pole. the majority of these filters are spatially-invariant, meaning that the filter has a constant wave number response over the whole signal. in contrast, many signals which encountered real problems such as magnetic signals, typi...

Carrier diffusion and spatial hole burning can have a severe impact on vertical cavity surface emitting laser (VCSEL) performance. In particular, these phenomena can produce secondary pulses, bumps, and optical tails in the VCSEL turn-off transient which limit both the system bit rate and the bit error rate (BER). To study these effects, laser rate equation models that include both spatial and ...

Spatially ordered arrangements of spherical colloids are known to exhibit structural colours. The intensity and brilliance these colours typically improve with colloidal monodispersity, low concentrations point line defects increasing refractive index contrast between the embedding medium. Here we show that suspensions charge stabilised, fluorinated latex particles refractive-index their aqueou...

Abstract Dielectric barrier discharges (DBDs) typically operate in the filamentary regime and thus exhibit great spatial temporal non-uniformity. In order to optimize DBDs for various applications, such as plasma catalysis, more fundamental insight is needed. Here, we consider how millions of microdischarges, characteristic a DBD, influence individual gas molecules. We use Monte Carlo approach ...

A master element to be employed as a general spatial rod finite element is presented. This spatially curved and pretwisted element can have variable cross-section and variable curvature change. It may also be resting on an elastic foundation. Also, a finite element formulation for a general earthquake analysis of spatial rods is presented. The theoretical foundation has lead to a general-purpos...