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Now showing items 1811-1820 of 2111
Geometric Constraints in the Growth of Nanotube Templated Polymer Monolayers
(2004)
We present a simple and general model that describes the ordered assembly of polymer strands on nanotube surfaces. Energetically favorable coiling angles are identified based on geometric constraints that limit the maximum ...
Structure of Si(111)-In Nanowires Determined from the Midinfrared Optical Response
(2009)
The anisotropic optical response of Si(111)-(4?1)/(8?2)-In in the midinfrared, where ab initio studies predict significant changes in the band structure between competing models of this important quasi-1D system, has been ...
High-frequency power loss mechanisms in ultra-thin amorphous ribbons
(2021)
Soft magnetic amorphous materials with ultra-low power loss are highly desirable for high-frequency drive
applications. The present work demonstrates the high-frequency power loss performance and underlying loss
mechanisms ...
Novel design for noise controlled semiconductor optical amplifier
(2009)
The use of semiconductor optical amplifiers (SOA) in optical communications networks has so far been limited due to their inherent large noise figure (NF) compared to Erbium Doped Fibre Amplifiers. Therefore improvement ...
Generation of continuously tunable fractional optical orbital angular momentum using internal conical diffraction
(2010)
When a left-circularly polarised Gaussian light beam, which has
spin angular momentum (SAM)
J
sp
=
?
?
= 1
?
per photon, is incident along
one of the optic axes of a slab of biaxial crystal it undergoes internal ...
Optical and electrical characterisation of hexabenzocoronene derivative molecular self-assemblies
(Trinity College (Dublin, Ireland). School of Physics, 2006)
In this thesis the optical properties of molecular aggregates of Hexa-peri-benzocoronene
derivatives are investigated for evidence of Frenkel Exciton Resonance (FER). Using
photo-luminescence and optical absorption measurement ...
Upper bound for the conductivity of nanotube networks
(2009)
Films composed of nanotube networks have their conductivities regulated by the junction resistances formed between tubes. Conductivity values are enhanced by lower junction resistances but should reach a maximum that is ...