Anomalous strong resonances in silver and gold nanoporous thin films which conduct are found to arise from isolated metal nano-islands separated from the surrounding percolating metal network by a thin loop of insulator. This observed resonant optical response is modelled. The observed peak position is in agreement with the observed average dimensions of the silver core and insulator shell. As ...

We report laboratory measurements of nonlinear parasitic capillary waves generated by longer waves in a channel. The experiments are conducted for three frequencies of longer waves ~4, 5, and 6 Hz!, corresponding to wavelengths of approximately 11, 7, and 5 cm. For these wavelengths we apply a model developed recently by Fedorov and Melville @J. Fluid Mech. 354, 1 ~1998!# to predict the wave pr...

the baroclinic adjustment is defined as the neutralization of the mean flow by eddies. with the amplitude growth of the baroclinic waves generated by an unstable mean flow, the eddy fluxes increase and act to reduce the meridional temperature gradient or vertical wind shear of the mean flow to subcritical value. this is believed to constitute the basic mechanism of baroclinic adjustment. the co...

According to Gruml luminescence is "the phenomenon of the emission by matter of electromagnetic radiation that for certain wavelengths or restricted regions of the spectrum is in excess of that due to the thermal radiation fiom the material at the same temperature." We encounter several different types of luminescence in everyday life such as fluorescence, phbsphorence, cathodoluminescence and ...

We report design and subsequent fabrication of an intrinsically gain flattened Erbiumdoped fiber amplifier (EDFA) based on a highly asymmetrical and concentric dual-core fiber, inner core of which was only partially doped. Phase-resonant optical coupling between the two cores was so tailored through optimization of its refractive index profile parameters that the longer wavelengths within the C...

In this paper, for their use as nanoluminophors on color-conversion white light emitting diodes LEDs , we present spectrally resolved relative quantum efficiency and relative color photon conversion efficiency of CdSe/ZnS core/shell nanocrystal NC emitters in the solid-state film. We observe that both the averaged relative quantum efficiency and the averaged relative photon conversion efficienc...

Beside wet or dry etching, lift-off is a common technique to pattern metal or dielectrica films in the μm or sub-μm range. The main criteria for the choice of a photoresist best-suited for a certain lift-off process are: The thickness of the coated material The coating technology (evaporation, sputtering, CVD, ...) and the maximum temperature the resist film has to stand during coating The requ...