A waveguide-coupled multiple-wavelength source can form the backbone of a fully operational on-chip optical network. Such networks can augment the computational capability of multi-core microprocessors [1]. Silicon photonics provides a viable platform for enormous bandwidths on a microelectronic chip by utilizing multiple wavelengths for a wavelength division multiplexing (WDM) scheme. However,...

In this work we report room-temperature photoluminescence from as-deposited hydrogenated silicon nitride films due to silicon nanocrystals/structural disorder. A systematic study of fabrication parameters and post-heat treatment on the optical features has been done. Enhancement in optical constant on annealing is attributed to phase separation into c-Si and other phases.

The response to different force load ranges and actuation at low energies is of considerable interest for applications of compliant and flexible devices undergoing large deformations. We present a review of technological platforms based on nitride materials (aluminum nitride and silicon nitride) for the microfabrication of a class of flexible micro-electro-mechanical systems. The approach explo...

Two different techniques for the electronic surface passivation of silicon solar cells, the plasma-enhanced chemical vapour deposition of silicon nitride (SiN) and the fabrication of thin thermal silicon oxide/plasma SiN stack structures, are investigated. It is demonstrated that, despite their low thermal budget, both techniques are capable of giving an outstanding surface passivation quality ...

Integrated optics platforms offer the possibility to implement compact photonic devices for nonlinear optics applications. Modern nanofabrication facilities allow the fabrication of sub-micron-sized waveguide geometries that confine light to reach very high optical intensities. These intensities enable efficient nonlinear processes that are further enhanced by using materials with high nonlinea...

Formation mechanisms of spatially-directed zincblende gallium nitride nanocrystals Role of oxygen on microstructure and thermoelectric properties of silicon nanocomposites Spectrally and temporarily resolved luminescence study of short-range order in nanostructured amorphous ZrO2 Characterization of luminescent silicon carbide nanocrystals prepared by reactive bonding and subsequent wet chemica...

Hot-wire chemical vapor deposition is a promising technique for deposition of thin amorphous, polycrystalline, and epitaxial silicon films for photovoltaic applications. Fundamental questions remain, however, about the gas-phase and surface-kinetic processes involved. To this end, the nature of the wire decomposition process has been studied in detail by use of mass spectrometry. Atomic silicon...

The hybrid vertical-cavity laser is a potential low current, high-efficiency, and small footprint light source for silicon photonics integration. As part of the development of such light sources we demonstrate hybrid-cavity VCSELs (HC-VCSELs) on silicon where a GaAs-based half-VCSEL is attached to a dielectric distributed Bragg reflector on silicon by adhesive bonding. HC-VCSELs at 850 nm with ...

2014 The effects on fast surface state density due to high-temperature hydrogen anneals through windows in the silicon nitride layer next to the active MNOS regions are presented. A marked geometry effect is observed as a result of the occurring lateral hydrogen diffusion mechanism. Besides this lateral diffusion process, a vertical hydrogen diffusion through the nitride layer is observed at te...