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 6 of 6 for “"turbid medium"”.
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Image and Optical Property Reconstruction From Noninvasive Measurements of Turbid Media, in Vitro and in Vivo: A Promising Method for Optical Mammography
… whether the diffusion model would be valid for a medium containing inhomogeneities. I, along with a handful of other researchers demonstrated that the diffusion model is accurate enough to include well behaved heterogeneous tissue models in which a number of macroscopic objects of different size …
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Wavelength tuneable frequency domain photon migration spectrometer for tissue-like media
… modulated light to quantitatively interrogate turbid media. The modulation frequencies employed are in the radiofrequency range. Intensity modulated light launched into a turbid medium generates photon density fluctuations with wave like character that oscillates at the modulation frequency. …
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Engineering functionalized gold nanoparticles as a molecular-specific contrast agent to enhance optoacoustic detection of breast cancer cells
… of light absorbing components deep within a turbid medium such as human breast. OAT could potentially be used to image breast tumors based on their enhanced angiogenesis; however, its sensitivity and specificity would be limited due to the lack of abnormal angiogenesis at the early stages of …
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Unraveling the puzzles of spectroscopy-based non-invasive blood glucose detection
… First, the effects of sample-to-sample turbidity induced variations in quantitative spectroscopy are studied. To account for these variations, a novel method, based on the photon migration theory, is proposed. We demonstrate that the proposed method can extract intrinsic line shapes and …
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Characterizing optical properties in fibrous tissues
Optical methods are promising for non-invasive tissue characterization. Biological tissues can be classified into isotropic tissues and anisotropic tissues. The optical properties of isotropic tissues such as adipose tissue are independent of measurement direction. However, optical properties of …
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Quantitative mRNA detection with advanced nonlinear microscopy
… and the dynamics of individual BTO in turbid medium is studied by an improved autocorrelation spectroscopy. The third chapter develops a novel second harmonic super-resolution microscopy (SHaSM), which is capable of detecting individual BTO nanocrystals with the lateral resolution as …