Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Optofluidics"”.
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Interfacial Dynamics and Applications in Optofluidics
High quality (Q) factor whispering gallery modes (WGMs) can induce nonlinear effects in liquid droplets through mechanisms such as radiation pressure, light scattering, thermocapillarity, Kerr nonlinearity, and thermal effect. However, such nonlinear effects have yet to be thoroughly investigated …
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Quantification of membrane transport rates using optofluidics
The transport of ions and small molecules across membranes is a ubiquitous process in biological systems. Effective studies of membrane transport phenomena require suitable model membrane systems, efficient methods to quantify transport kinetics and a robust theoretical framework to derive …
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Optofluidic microchip for biomedical and chemical sensing
… the combination of which is known as optofluidics, for the creation of powerful chemical and biomedical diagnostic microchips. The design and fabri-cation of system components such as vertical-cavity surface-emitting lasers, pho-todetectors, and fluorescence filters are explored, and …
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Super-collimation in a rod-based photonic crystal
… interesting direction is the burgeoning field of optofluidics, in which integrated biological or chemical sensors can be based on super-collimating structures. The work presented in the thesis includes the design, fabrication, and characterizion of a rod-based two-dimensional photonic crystal …
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Bangolaidžių integravimas į lydytą kvarcą panaudojant femtosekundinius šviesos impulsus /
… in such areas as optical communication, optofluidics, sensing and astrophotnics, is a femtosecond laser written waveguide formed by exploiting type I material modification, i.e. smooth refractive index increase. This work investigates the possibility of writing waveguides inside fused …
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Manufacturing and aerostatic tunability of opto-mechano-fluidic resonator and its application in viscosity sensing
… factors are simultaneously maintained. Unlike optofluidics biosensing, because the optical modes don't interact with the liquids directly, the optomechanical biosensing doesn't have any requirement of the optical properties of the fluids and bioanalytes. Detailed methodology is provided to …
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In-situ monitoring of photocatalytic reactions in optofluidic microreactors
… this thesis marries the fields of fibre-based optofluidics and photocatalysis to generate scientific insights into how promising new photocatalysts behave. Novel types of optical fibre were optimised and characterised for liquid phase spectroscopy on sub-microlitre samples; these fibres …
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Development and Optimisation of an Optofluidic Evanescent Field Nano Tweezer System for Trapping Nanometre Crystals for Synchrotron X-Ray Diffraction Experiments
… was evaluated. A first batch of upgraded optofluidics chips was upgraded using focused ion beam assisted gas deposition to generate the platinum plasmonic antennas. This method however, proved unsuccessful so the remaining batch was upgraded using e-beam lithography to generate gold …
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Multimodal in-situ spectroscopy of novel enzyme mimics with optofluidic microreactors
Photocatalysis plays a key role in ensuring a more sustainable future through harnessing the power of the sun for solar fuel production, degrading harmful environmental pollutants and driving the green synthesis of valuable organic products. Despite their significant potential, the current …
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Collective hydrodynamics of soft microparticles in quasi-two-dimensional confinement
… in such areas as materials assembly, optofluidics, and miniaturized "on-chip" bioassays and cytometry. Recently, researchers have sought to understand the conditions under which particles can organize themselves through interactions generic to the flow of suspensions through …
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Flexible Fabrication of Multi-scale Integrated 3D Periodic Nanostructures with Phase Mask
Top-down fabrication of artificial nanostructures, especially three-dimensional (3D) periodic nanostructures, that forms uniform and defect-free structures over large area with the advantages of high throughput and rapid processing and in a manner that can further monolithically integrate into …
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Radiation Pressure induced Nonlinearity in Micro-droplet
Optical resonators such as silica micro-spheres and micro-toroids can support whispering gallery modes (WGMs), where light circulates near the resonator surface and is confined by the total internal reflection at the dielectric boundary. Such resonators can exhibit very high quality (Q) factors, …
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Optical diagnostics for oral and gastrointestinal tract pathologies
Oral potentially malignant disorders (OPMD) are a significant global health burden. They are a precursor to oral cancer and indicate a tissue with a higher risk of developing a malignancy. Early diagnosis can improve patient outcomes by minimally invasive treatment, reduced mortality rate and …
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Optofluidic Microreactors for Advanced Photocatalysis
This PhD project explores the application of hollow-core photonic crystal fibres (HC- PCFs) as a novel and advanced characterization technique to monitor photocatalysis. The use of HC-PCFs as the core element of a newly developed characterisation platform has many benefits: HC-PCF’s light-guiding …
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Protein Biophysics in Hollow-Core Photonic Crystal Fibres: Label-Free Monitoring of Biomolecules in Optofluidic Waveguides
Proteins are the central building blocks of life, and experimental methods for their study are fundamental to deepening our under- standing of biology and the life sciences. When studying protein interactions, we seek new experimental methods that can detect and monitor proteins in solution, at …