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661
Thermorefringent noise in crystalline optical materials
Published 2024“…In passing, our general formalism also predicts the existence of thermal beam-pointing noise.…”
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Article -
662
Narrow band wavelength selective filter using grating assisted single ring resonator
Published 2014“…The proof-of-concept device has been demonstrated on a Silicon-on-Insulator (SOI) platform through electron beam lithography and Reactive Ion Etching (RIE) process. …”
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Journal Article -
663
Post-buckling transition of compressed pipe strings in horizontal wellbores
Published 2021“…In the current study, the compressed pipe strings initially located at the bottom of horizontal wellbores were discretized into beam elements, and a gap element was introduced to detect the contact between the horizontal strings and the wellbores. …”
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Journal Article -
664
Enhanced versatility of table-top X-rays from Van der Waals structures
Published 2022“…By introducing a tilt angle between the vdW structure and the incident electron beam, it is theoretically and experimentally shown that the accessible photon energy range is more than doubled. …”
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Journal Article -
665
A cantilever-based NEM nonvolatile memory utilizing electrostatic actuation and vibrational deactuation for high-temperature operation
Published 2015“…The memory bit (0/1) is formed by the opening/closing of a cantilever beam. Permanent retention is obtained by adhesive force between two smooth surfaces in contact, eliminating leakage observed in all types of storage-layer-based NVMs. …”
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Journal Article -
666
Integration of InGaAs MOSFETs and GaAs/ AlGaAs lasers on Si Substrate for advanced opto-electronic integrated circuits (OEICs)
Published 2019“…The laser and transistor layers were grown on the Si substrate by molecular beam epitaxy (MBE) using direct epitaxial growth. …”
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Journal Article -
667
Real-time measurement of nano-particle size using differential optical phase detection
Published 2018“…Nano-particle diameters are obtained from the differential phase shift as a result of adding an optical scattering perturbation into two-beam interference. Polystyrene nano-particles with diameters from 200 to 900 nm in a microfluidic channel are detected using this technique to acquire real-time particle diameters. …”
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Journal Article -
668
Progressive collapse behaviour of precast concrete structures with advanced joints
Published 2024“…Through numerical analysis, advantages of incorporating an additional bar layer (ABL) and plastic hinge relocation (PHR) in the beam-joint region for enhancing collapse resistance of RC frames were illuminated. …”
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Thesis-Doctor of Philosophy -
669
Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices
Published 2024“…Here, we perform in situ nanomechanical experiments that evidence up to an 11-fold increase in stiffness (∼1.49 to 16.9 GPa) and a 5-fold increase in strength (∼88 to 426 MPa) because of surface stiffening/strengthening from shaping these nanomaterials via focused-ion-beam milling. To predict the mechanical properties of shaped NPSLs, we present discrete element method (DEM) simulations and an analytical core-shell model that capture the FIB-induced stiffening response. …”
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Article -
670
Materials beyond monolayers: The magnetic quasi-1D semiconductor CrSBr
Published 2024“…We discuss the stability of CrSBr in air and show atomic scale structural manipulation through electron beam-driven transformations. We conclude that the stability and structural amenability of CrSBr provide opportunities for imagining devices that use bulk crystals yet exploit unique magnetic and quantum confinement effects.…”
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Article -
671
Study of a 1 eV GaNAsSb photovoltaic cell grown on a silicon substrate
Published 2014“…We report the performance of a 1 eV GaNAsSb photovoltaic cell grown on a Si substrate with a SiGe graded buffer grown using molecular beam epitaxy. For comparison, the performance of a similar 1 eV GaN0.018As0.897 Sb 0.085 photovoltaic cell grown on a GaAs substrate was also reported. …”
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Journal Article -
672
Observation of the interactions of silver nanoparticles (AgNPs) mediated by acid in the aquatic matrices using in-situ liquid cell transmission electron microscopy
Published 2021“…Aggregates formed in this scenario were non spherical and irregular shaped and were stable under the electron beam irradiation. Individual AgNPs and smaller aggregates moved randomly and approached the larger aggregates before the aggregation process came to an end. …”
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Journal Article -
673
Three dimensional acoustic tweezers with vortex streaming
Published 2021“…Acoustic tweezers based on single-beam focused acoustic vortices have attracted considerable attention due to their selective trapping capability, but have proven difficult to use for three-dimensional (3D) trapping without a complex transducer array and significant constraints on the trapped particle properties. …”
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Journal Article -
674
Small-scale wind energy harvesting using piezoelectric materials
Published 2015“…A two degree-of-freedom galloping piezoelectric energy harvester (GPEH) is proposed which successfully enhances the output power in low wind speeds. A beam stiffener is employed as an electromechanical coupling magnifier, which is proved to be an easy but greatly effective efficiency enhancing method for energy harvesting from VIV, flutter as well as galloping. …”
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Thesis -
675
Antenna-enhanced and polarization sensitive photoresponse in arrays of silicon P–i–N nanowires
Published 2013“…Quantitative characterization of these resonances was performed by spectral and polarization-resolved photocurrent measurements on gratings with N = 500, 200 and 100 nanowires, aided by electron beam-induced current measurements, and in excellent agreement with electromagnetic scattering theory. …”
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Journal Article -
676
Thermal characterization of nanoscale material
Published 2009“…Thin gold layers were deposited on top of these samples through e-beam deposition process to enhance sample heat absorption during photothermal experiment. …”
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Final Year Project (FYP) -
677
Fabrication and characterization of the electrical properties of phase change materials
Published 2011“…The films were milled into nanowires by Focused Ion Beam and the resulting crystalline resistivity was comparable to that of the films, indicating reasonable physical scalability.…”
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Final Year Project (FYP) -
678
Characterization of harbor seal whisker
Published 2012“…In addition, a theoretical model based on elliptical conical beam, was developed to study the behaviour of the whiskers. …”
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Final Year Project (FYP) -
679
Prismatic, basal, and slip strengths of commercially pure Zr by micro-cantilever tests
Published 2015“…Single-crystal cantilevers ranging from 0.5 µm to 10 µm wide, oriented for single slip, were prepared using focused ion beam (FIB) machining and deflected using a nanoindenter. …”
Dataset -
680
Investigation of operational characteristics of vanadium redox flow batteries
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Thesis