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 9 of 9 for “"photoacoustics"”.
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Expanding ultrafast photoacoustics for investigation of mechanical properties and thermal transport
To address the need for broadband mechanical spectroscopy, femtosecond laser pulses were used to generate and detect acoustic waves. To expand the acoustic phonon frequency bandwidth and range, a thin metal film, a strongly magnetostrictive galfenol film, and strained piezoelectric InGaN/GaN …
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Modelling external light transmission through to the human fetus
… research across fields such as fetal vision, photoacoustics, and ectogenesis. This thesis outlines a mathematical model developed for the purposes of simulating the propagation of light sources through maternal tissue to the human fetus, with applications exploring the effect of adipose on …
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Clinical applications of quantitative photoacoustic imaging
… three steps towards the clinical translation of photoacoustics: tackling skin colour bias, applying it to a new disease and improving the transparency of computational methods. To characterise the effects of skin colour on photoacoustic imaging, I carried out a technical study using simulations, …
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Multi-modal molecular imaging of radiation therapy response in the tumour vascular microenvironment
… for assessing the potential of preclinical photoacoustics to interrogate the pathophysiological response of the tumour microenvironment to radiation therapy validated ex vivo: i) high-resolution longitudinal vascular imaging is performed in physiological and pathological tissues for the …
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Optical-Resolution Photoacoustic Microscopy
… fully assessable. The emergence of biomedical photoacoustics has led to a new branch of optical microscopy--OR-PAM. As a valuable complement to existing optical microscopy technologies, OR-PAM detects optical absorption contrasts with exquisite sensitivity: i.e., 100%). Combining OR-PAM with …
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Photoacoustic Microscopy and Photoacoustic Computed Tomography Using High-frequency Linear Array Ultrasonic Transducers
<p>Photoacoustic tomography (PAT) is a highly promising imaging technology which forms images by detecting the induced pressure waves resulting from pulsed light absorption in biological tissues. Because the excitation source is light, PAT is a very safe, non-ionizing, and non-carcinogenic imaging …
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Laser-activated perfluorocarbon nanodroplets as a tool in neurological applications
Perfluorocarbon nanodroplets (PFCnDs) are an emerging class of nanoagents for biomedical applications. These nanoparticles are unique in their ability to phase change from liquid nanodroplet to gas microbubble when activated by electromagnetic energy. The ability of PFCnDs to phase change when …
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Identification of Human Adrenal Carcinoma Cells Using Photoacoustic Flow Cytometry
<p>With consistently high mortality rates in patients with adrenal cancer, lack of early detection and diagnosis are an ever increasing problem in fighting the deadly disease. Currently, very few patients are diagnosed with adrenal cancer within the early stages due to the absence of symptoms until …
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Development of High-speed Photoacoustic Imaging technology and Its Applications in Biomedical Research
Photoacoustic (PA) tomography (PAT) is a novel imaging modality that combines the fine lateral resolution from optical imaging and the deep penetration from ultrasonic imaging, and provides rich optical-absorption–based images. PAT has been widely used in extracting structural and functional …