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8121
Digital holography to light field
Published 2014“…Due to its non-interferometric nature, TIE relaxes the stringent beam-coherence requirements for interferometry, extending its applications to various optical fields with arbitrary spatial and temporal coherence. …”
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Conference Paper -
8122
Multi-bounce Returns for Specular Surface Mapping from Consumer-grade Flash LiDAR
Published 2024“…Consumer-grade LiDAR multi-beam flash LiDAR is challenging with its coarse resolution, co-located sensors, and multiplexing setup. …”
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Thesis -
8123
Study on the mechanical properties of multi jet fusion 3D printed PA12 lattice structures
Published 2023“…However, MJF and HSS use inkjet-dispensed agents and a heating element while SLS fuses the powder material through the use of a directed laser beam. Products manufactured by MJF feature a good surface finish, good feature resolution, and consistent mechanical properties, making them appealing to consumers. …”
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Final Year Project (FYP) -
8124
A study on the use of femtosecond laser to perform surface polishing on a selective laser melting manufactured type 316L stainless steel
Published 2019“…It appeared to be the effect of more material getting ablated in the depth direction surrounding the particulate where the laser beam was directed to the surface for a longer period. …”
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Final Year Project (FYP) -
8125
Optimizing MC-ICP-MS with SEM protocols for determination of U and Th isotope ratios and 230Th ages in carbonates
Published 2019“…Non-linear behavior was not observed in the MasCom SEM with a retarding potential quadrupole in our MC-ICP-MS system when the beam intensity was limited to < ∼1 × 10 6 cps. We performed a series of tests to examine the influence of tuning parameters, peak shift, and operating voltage of the SEM on isotopic measurements. …”
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Journal Article -
8126
Reduction of bubble cavitation by modifying the diffraction wave from a lithotripter aperture
Published 2013“…There is no difference, however, in both the amplitude and duration of the compressive shockwaves between these two configurations as well as the −6 dB beam width in the focal plane. The significant suppression effect of bubble cavitation was confirmed by the measured bubble collapse time using passive cavitation detection. …”
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Journal Article -
8127
Multi-branch sandwich piezoelectric energy harvester : mathematical modeling and validation
Published 2021“…The proposed harvester comprises of a main sandwich beam as substrate with a patch of piezoelectric layer bonded over it. …”
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Journal Article -
8128
Investigation of soil-structure interaction for deep excavations
Published 2023“…The deep excavation was supported by a complex ’combi-wall’ cofferdam, a reinforced concrete (RC) capping beam, and two levels of internal bracing, and its performance was assessed through measured wall deflections, bracing member loads, and site and bunker water levels. …”
Thesis -
8129
Programmable interfacial band configuration in WS2/Bi2O2Se heterojunctions
Published 2024“…Using this material combination, we further design a sophisticated band architecture incorporating both type-I (WS2 straddles Bi2O2Se, fluorescence-quenched) and type-I (Bi2SeO5 straddles WS2, fluorescence-recovered) alignments in one sample through focused laser beam (FLB). By programming the FLB trajectory, we achieve a predesigned localized fluorescence micropattern on WS2 without changing its intrinsic atomic structure. …”
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Journal Article -
8130
Computational design of a novel soft-Xray-based turbulence diagnostic in NSTX-U
Published 2024“…Assumptions from the previous study, such as infinitely thin beam size, are relaxed to assess their impact on reconstruction. …”
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Thesis -
8131
Constructing 3D self-supporting surfaces with isotropic stress using 4D minimal hypersurfaces of revolution
Published 2021“…The existing thrust network analysis methods discretize both geometry and material by approximating the continuous stress field through uniaxial singular stresses, making them an ideal tool for analysis and design of beam structures. In contrast, our method works on piecewise linear surfaces with continuous material. …”
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Journal Article -
8132
On shear adhesion of adhesive fibrils
Published 2024“…Our model reveals that, depending on the fibrillar aspect ratio, the adhesive fibril exhibits three distinct deformation regimes: thin film shearing, thick block shearing, and slender beam bending. The important parameters governing the shear adhesion of the lap shear system are the aspect ratio of fibrils, elastic moduli of the fibrils and substrates, while the Poisson's ratio of fibrils has no noticeable effect. …”
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Journal Article -
8133
Non-Destructive Material Characterization Methods /
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software, multimedia -
8134
Squeezing the Quantum Noise of LIGO below the Standard Quantum Limit
Published 2024“…The SQL applies when using uncorrelated photons or coherent light to measure the object, such as a laser beam. However, introducing quantum correlations through squeezed light, a technique called squeezing (Chapter 2), can circumvent this limit. …”
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Thesis -
8135
Surface plasmon resonance (SPR) enhanced biosensors
Published 2016“…The fabrication steps of the arrays were composed of electron-beam lithography and nano-imprint lithography. In comparison with the PAuNH array, the AuNH array offered higher field enhancement for fluorescence when only LSP was excited. …”
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Thesis -
8136
SPP/LSP coupled hybrid mode directed multi-functional surface-enhanced Raman system
Published 2013“…In the experiment, SPPs are excited by a tightly-focused radially polarized beam and interact with the nanospheres to generate the plasmon-hybrid-mode, exactly according to the second configuration aforementioned. …”
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Thesis -
8137
Hybrid lasers and modulator on silicon in the near- and mid-infrared region
Published 2017“…The lateral grating can be fabricated by CMOS-compatible inline lithography, which avoids the use of expensive and time-consuming electron beam lithography. The device works at room temperature with the single-side-suppression-ratio (SMSR) of 20 dB and the threshold current density is 1.54 kA/cm2. …”
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Thesis -
8138
Selected Problems of Solid Mechanics and Solving Methods /
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software, multimedia -
8139
Developments in THz Polaritonics: Towards Integrated Nonlinear THz Spectroscopy
Published 2024“…The optical pump light is focused onto the bevel, after which it refracts and becomes confined within the waveguide by total internal reflection. This allows the pump beam to repeatedly drive the generated THz field during its multiple back-and-forth traversals within the LN slab. …”
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Thesis -
8140
Investigations into femtosecond laser hybrid manufacturing for 3D power sources
Published 2021“…These VPGs are then demonstrated as active beam steering units and tuneable spectroscopic optical elements. …”
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Thesis-Doctor of Philosophy