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Showing result 1 - 5 of 13 essays matching the above criteria.
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1. Elastic hyperspectral lidar for detecting coherent backscatter from insects
University essay from Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionenAbstract : Insects play a major role in the ecosystem and are an important factor for biodiversity. Using laser remote sensing to distinguish and monitor the millions of insects in-situ, holds large potential to speed up and improve the otherwise time consuming process of trapping and subsequent analysis. READ MORE
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2. In-vivo assessment of unwanted tissue heating during near infrared laser light emission
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : In this work, potential adverse tissue heating in conjunction with near infrared (NIR) laser spectroscopy was studied. The tissue heating from laser light within the NIR optical window is currently a relatively unexplored field. READ MORE
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3. High Accuracy Relative Luminescence Quantum Yield Measurements of Upconverting Nanoparticles
University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/AtomfysikAbstract : The name Upconverting nanoparticles refers to a novel category of luminescence emitters that are capable of generating visible luminescence upon excitation with noncoherent and longer wavelength monochromatic near-infrared light, at excitation fluence rates as low as 1-103 W/cm2. This unique optical behaviour is of great interest to researchers as it could potentially allow for virtually autofluorescence free luminescence imaging of living tissue. READ MORE
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4. Development of an Upconverting Nanoparticles Quantum Yield Measurement System
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : Fluorescence imaging is a growing biomedical technique; it can be used to localize the luminescent biomarkers inside the tissue. Lanthanide-doped upconverting nanoparticles (UCNPs) are promising luminescent probes for multiple applications in biophotonics. They allow acquiring autofluorescence-free recordings with high spatial resolution. READ MORE
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5. Diffuse Reflectance Spectroscopy: Using a Monte Carlo method to determine chromophore compositions of tissue
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : In this work, inverse diffusion equation and Monte Carlo methods are used in conjunction with diffuse reflectance spectroscopy to develop a protocol for evaluating the chromophore compositions of tissue mimicking liquid phantoms. A novel two spectrometer system is used which provides real time calibration of any intensity fluctuations of the light source. READ MORE