Browsing Physics by Title
Now showing items 348-367 of 2105
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Dependence of charge carrier injection on the interface energy barrier in short-channel polymeric field effect transistors
(2012)The influence of contact materials on the electrical characteristics of field-effect transistors made from poly(3-hexylthiophene) with short-channel lengths of 80nm is investigated. The thermally activated output current ... -
Dependence of core-level photoemission spectra on overlayer growth mode: Al on InP(110)
(1988)The adsorption of Al overlayers on the clean, cleaved InP(110) surface has been studied, with the InP substrates at room and low (120 K) temperatures, using synchrotron radiation excited soft-x-ray photoemission spectroscopy. ... -
Dependence of Photocurrent Enhancements in Hybrid Quantum Dot-MoS2 Devices on Quantum Dot Emission Wavelength
(2019)The spectral dependence of nonradiative energy transfer (NRET) from three spectrally different quantum dot (QD) ensembles to monolayer MoS2 is reported. The QDs with peak emission wavelengths of 450, 530, and 630 nm induce ... -
Dependence of Photocurrent Enhancements in Quantum Dot (QD)-Sensitized MoS2 Devices on MoS2 Film Properties
(2018)This report demonstrates highly efficient nonradiative energy transfer (NRET) from alloyed CdSeS/ZnS semiconductor nanocrystal quantum dots (QDs) to MoS2 films of varying layer thicknesses, including pristine monolayers, ... -
Description of polarisation dependence of two-photon absorption in silicon avalanche photodiodes
(2010)A simple formula is obtained that very accurately describes the level of two-photon absorption (TPA) generated by elliptically polarised light in silicon avalanche photodiodes (Si-APDs). The dichroism parameter necessary ... -
Description of the buckling of a chain of hard spheres in terms of Jacobi functions
(2022)A linear chain of hard spheres, confined by a transverse harmonic potential, buckles under compression between two hard walls. Jacobi functions provide exact analytic solutions of a differential equation (related to the ... -
Design and characterization of widely tunable semiconductor lasers based on etched slots
(Trinity College (Dublin, Ireland). School of Physics, 2015)Tunable semiconductor lasers play an important role in numerous technologies for optical communication and sensing systems. They are widely used in dense wavelength division multiplexed (DWDM) systems and in other important ... -
Design and Construction of an Optoelectronic. Crossbar Switch Containing a Terabit per. Second Free-Space Optical Interconnect
(1999)THE COMPLETED DETAILED DESIGN AND INITIAL PHASES OF CONSTRUCTION OF AN OPTOELECTRONIC CROSSBAR DEMONSTRATOR ARE PRESENTED. THE EXPERIMENTAL SYSTEM USES HYBRID VERY LARGE SCALE INTEGRATED OPTOELECTRONICS TECHNOLOGY WHEREBY ... -
Design and fabrication of a waveguiding organic double heterostructure light-emitting device : a milestone in the development of an electrically pumped polymer laser
(Trinity College (Dublin, Ireland). School of Physics, 2003)The development of an electrically pumped polymer laser fabricated using simple solution processing would revolutionise the optial data storage and communications industry. In order to achieve this, a research strategy, ... -
The design of a double-tuned two-port surface resonator and its application to in vivo Hydrogen- and Sodium-MRI
(2012)The design and construction of a two-port surface transceiver resonator for both 1H and 23Na-MRI in the rodent brain at 7T is described. Double-tuned resonators are required for accurately co-registering multi-nuclei ... -
Design of atomic force microscope cantilevers for combined thermomechanical writing and thermal reading in array operation
(IEEE, 2002)In thermomechanical data writing, a resistively-heated atomic force microscope (AFM) cantilever tip forms indentations in a thin polymer film. The same cantilever operates as a thermal proximity sensor to detect the presence ... -
Design of Low V-pi High-Speed GaAs Travelling-Wave Electrooptic Phase Modulators Using an n-i-p-n Structure
(2008)GaAs-based electrooptic phase modulators using an n-i-p-n structure and coplanar waveguide traveling-wave electrodes are designed using the compact 2-D finite-difference time-domain technique and Pade approximation ... -
Design of microcavity semiconductor devices for highly efficient optical switching and sampling applications
(2002)Summary form only given. Two Photon Absorption (TPA) in semiconductors has recently been shown to be a serious candidate for optical autocorrelation of short pulses, and all-optical switching and sampling of high speed ... -
Design of Novel Magnetic Materials with Machine-Learning and High-Throughput Techniques
(Trinity College Dublin. School of Physics. Discipline of Physics, 2024)The importance of magnetic materials in modern applications is unquestionable. They are used in a wide range of applications, going from data storage devices to green energy production. This class of materials is well known ... -
Design of optical system for heat-assisted magnetic recording
(Trinity College (Dublin, Ireland). School of Physics, 2012) -
Design of Slotted Single-Mode Lasers Suitable for Photonic Integration
(2010)A single-mode laser structure suitable for photonic integration is presented. The laser can be fabricated by standard photolithography without any regrowth steps. Through optimization, a threshold current as low as 13 mA ... -
The Design, Characterisation and Athermalisation of Vernier Widely Tunable Semiconductor Lasers
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)The early 21st century has seen a surge in demand for communications technologies, particularly with the internet having become a near essential utility in recent years. The rise of high-resolution video streaming, among ... -
Designing a fully compensated half-metallic ferrimagnet
(2016)Recent experimental work on Mn 2 Ru x Ga demonstrates its potential as a compensated ferrimagnetic half metal (CFHM). Here we present a set of high-throughput ab initio density functional theory calculations and a ... -
Detection of the Faraday Chiral Anisotropy
(2021)Being the intimate connection between chirality and magnetism, magneto-chiral anisotropies (MChA) - featuring non-reciprocal optical responses in chiral systems depending on the relative direction of the magnetic field B ...