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Full-Text Articles in Optics
Quantitative Optical Studies Of Oxidative Stress In Rodent Models Of Eye And Lung Injuries, Zahra Ghanian
Quantitative Optical Studies Of Oxidative Stress In Rodent Models Of Eye And Lung Injuries, Zahra Ghanian
Theses and Dissertations
Optical imaging techniques have emerged as essential tools for reliable assessment of organ structure, biochemistry, and metabolic function. The recognition of metabolic markers for disease diagnosis has rekindled significant interest in the development of optical methods to measure the metabolism of the organ.
The objective of my research was to employ optical imaging tools and to implement signal and image processing techniques capable of quantifying cellular metabolism for the diagnosis of diseases in human organs such as eyes and lungs. To accomplish this goal, three different tools, cryoimager, fluorescent microscope, and optical coherence tomography system were utilized to study the …
Phase Sensitive Thermography Of Magnetostrictive Materials Under Periodic Excitations, Peng Yang
Phase Sensitive Thermography Of Magnetostrictive Materials Under Periodic Excitations, Peng Yang
Theses and Dissertations
The use of giant magnetostrictive materials in actuator and sensor applications is still relatively new. Giant magnetostrictive materials, such as Terfenol-D, are unique in producing large deformation under a magnetic field. Applications of these materials in solid state actuators and transducers may require more knowledge on the interaction between geometry and material properties for a specific design. In order to gain more understanding of the magnetostriction mechanism, phase sensitive or lock-in thermography has been used to study Terfenol-D. Thermography is useful in that it allows for full field measurement of the surface of an object with a relatively simple setup. …
Variable Pathlength Cavity Spectroscopy Development Of An Automated Prototype, Ryan Schmeling
Variable Pathlength Cavity Spectroscopy Development Of An Automated Prototype, Ryan Schmeling
Theses and Dissertations
ABSTRACT
VARIABLE PATHLENGTH CAVITY SPECTROSCOPY
DEVELOPMENT OF AN AUTOMATED PROTOTYPE
by
Ryan Andrew Schmeling
The University of Wisconsin-Milwaukee, 2016
Under the Supervision of Professor Joseph H. Aldstadt III
Spectroscopy is the study of the interaction of electromagnetic radiation (EMR) with matter to probe the chemical and physical properties of atoms and molecules. The primary types of analytical spectroscopy are absorption, emission, and scattering methods. Absorption spectroscopy can quantitatively determine the chemical concentration of a given species in a sample by the relationship described by Beer’s Law. Upon inspection of Beer’s Law, it becomes apparent that for a given analyte concentration, …