Browsing Electronic & Electrical Eng (Scholarly Publications) by Subject "Mechanical and Manufacturing Engineering"
Now showing items 1-11 of 11
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Analysis of Strain and Intermixing in a Single Layer Ge/Si dots using polarized Raman Spectroscopy
(2006)The built-in strain and composition of as-grown and Si-capped single layers of Ge?Si dots grown at various temperatures (460?800 ?C) are studied by a comparative analysis of the Ge-Ge and Si-Ge modes in the polarized Raman ... -
Design of 1D composite photonic crystals with an extended photonic band gap
(2006)A technique for photonic band gap PBG extension based on mixing photonic crystals with different lattice constants or filling factors is suggested. For the design of photonic crystals with maximal PBG extension the gap ... -
Electrical Properties of High-k Ta205 Gate Dielectrics on Strained Ge-rich Layers
(IEEE, 2004)The electrical properties of ultrathin high-k Zr02 gate dielectric films dcposited on strained Gc-rich layers using microwave plasma enhanced chemical vapor deposition (PECVD) technique at a low temperature (150'C) have ... -
Investigations on rare-earth doped alumino-silicate xerogel incorporated in micro-channel glass and porous silicon
(2005)Porous materials in general have received great attention from the last century. The development of new porous materials and the preparation of new composites based on porous materials is a subject of interest. The development ... -
Microtube cavities from templated filtering: confined optical modes and amplified spontaneous emission
(American Institute of Physics, 2006)The authors demonstrate a new route to the fabrication of individual aluminosilicate microtubes that can act as micron-scale optical cylindrical resonators. The microtubes were prepared using a simple vacuum assisted ... -
Molecular tilt angle and order parameter of low molar mass ferroelectric liquid crystal using IR spectroscopy
(1996)Fourier transform infrared spectroscopy of a ferroelectric liquid-crystalline material: 4-(3)-(S)- methyl-2-(S)-chloropentanoyloxy-4'-octyloxy-biphenyl has been investigated in the wavenumber range 450 - 4000 cm-1 for ... -
Observation of an anchoring transition in a discotic liquid crystal
(EDP Sciences, 1998)We report the anchoring transition in a discotic liquid crystal, hexapentyloxytriphenylene (HPT), from edge-on to side-on alignment in a discotic phase. The topology, easy direction of orientation and the coating of the ... -
On the impact of introducing advanced devices into a cognitive radio network
(IEEE, 2009)Abstract?Cognitive Radio promises better spectrum utilisation through decentralised control, sensing and decision making. The devices are intended to be inexpensive, upgradeable and adaptable. However, introducing ... -
Quantum dot energy relaxation mediated by plasmon emission in doped covalent semiconductor heterostructures
(American Physical Society, 2007)The interaction between interface plasmons within a doped substrate and quantum dot electrons or holes has been theoretically studied in double heterostructures based on covalent semiconductors. The interface plasmon modes, ... -
Whispering-gallery modes in photonic tubes
(Society of Photo-optical Instrumentation Engineers (SPIE), 2007)A new method has been developed to fabricate microtube resonators with strong whispering-gallery-mode emission and quality factors up to 3000.