Browsing Electronic & Electrical Eng (Scholarly Publications) by Sponsor "Irish Research Council for Science and Engineering Technology (IRCSET)"
Now showing items 21-35 of 35
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Observation of surface states within the stop-bands of a photonic crystal slab with asymmetric termination
(Oxford University Press, 2013) -
Optical properties of grooved silicon structures: theory and experiment
(2011)The reflection spectra of grooved silicon structures consisting of alternating silicon walls and grooves (air channels) with a period of a = 4?6 ?m are studied experimentally and theoretically in the mid-IR spectral range ... -
Optical spectra of two-dimensional photonic crystal bars based on macroporous Si
(2011)Two-dimensional (2D) photonic crystal (PC) bars with 6 and 21 periods were fabricated by simultaneous photoelectrochemical etching of macropores and trenches in a pre-patterned silicon wafer. The structures had square ... -
Pathological Motion Detection for Robust Missing Data Treatment
(2008)This paper presents a new missing data detection algorithm that is robust to pathological motion (PM). PM causes clean image data to be misdiagnosed as missing data, resulting in damage to the image during restoration. The ... -
Phase space master equations for quantum Brownian motion in a periodic potential: comparison of various kinetic models
(2011)The dynamics of quantum Brownian particles in a cosine periodic potential are studied using the phase space formalism associated with the Wigner representation of quantum mechanics. Various kinetic phase space master ... -
Raman and Fourier transform infrared study of substitutional carbon incorporation in rapid thermal chemical vapor deposited Si 1-x-yGexCy on (1 0 0) Si
(2010)We report on a detailed study of the dependence of the vibrational modes in rapid thermal chemical vapor deposited Si1?x?yGexCy films on the substitutional carbon concentration. Si1?x?yGexCy films were investigated using ... -
Raman investigation of different polytypes in SiC thin films grown by solid-gas phase epitaxy on Si (111) and 6H-SiC substrates
(2010)Raman spectroscopy was applied to investigate a series of SiC films grown on Si and 6HSiC substrates by a new method of solid gas phase epitaxy. During the growth characteristic voids are formed in Si at the SiC/Si ... -
Reversal and pinning of Curie point transformations in thin film piezoelectrics
(2011)The Curie point for a rhombohedral piezoelectric thin film was established by in situ micro-Raman spectroscopy. The hysteresis in phase reversal and specific thermal conditions for disrupting such reversal were determined. -
Ruserford Back-scattering and Micro-Raman spectroscopy of composite a-C:Pt films grown by magnetron co-sputtering of graphite and Pt targets by photoelectrochemical etching of silicon
(2010)Raman spectra have been measured in the spectral range from 1000 to 1800 cm?1 on samples of amorphous carbon modified with platinum in amounts comparable with that of carbon. Also, Rutherford backscattering spectra have ... -
Semiclassical treatment of a Brownian ratchet using the quantum Smoluchowski equation
(2009)Quantum effects in the noninertial Brownian motion of a particle in a one-dimensional ratchet potential are treated in the high temperature and weak bath-particle coupling limit by solving a quantum Smoluchowski equation ... -
Silicon photonic crystal filter with ultrawide passband characteristics
(2011)We report on what is believed to be the first example of an ultrawide, bandpass filter, based on a high-contrast multicomponent one-dimensional Si photonic crystal (PC). The effect of the disappearance of a limited number ... -
Surface states in optical spectra of two-dimensional photonic crystals with various surface terminations
(2012)Reflection and transmission spectra of two-dimensional photonic crystal slabs, fabricated by photoelectrochemical etching of deep macropores and trenches in Si, are investigated theoretically and experimentally. It is ... -
Surface Tamm states in a photonic crystal slab with asymmetric termination
(2013)The reflection and transmission spectra of a finite thickness 2D Photonic Crystal Slab (PCS) based on macroporous silicon are investigated. Periodic photonic crystal region is separated from air by homogeneous silicon ...