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 20 of 98 for “"Polarimetric"”.
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Radio-polarimetric observations of gravitational lenses
… thesis were to study the observational radio-polarimetric properties of gravitational lens systems. Such studies can constrain lensed source properties, propagation effects in the intervening lensing galaxies, and the general-relativistic invariance of polarization under lensing. We performed …
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Polarimetric observations at low radio frequencies
Magnetic fields play a fundamental role in the evolution of astrophysical systems. These fields can be studied through wide-field spectropolarimetry, which allows for faint polarised signals to be detected at relatively low radio frequencies. An interferometric polarisation mode has recently become …
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Polarimetric Temperature Sensor Using Core-replaced Fiber
… This birefringence can be used to create a polarimetric sensor. The elliptical core supports two orthogonal modes that have separate effective indices of refraction. The indices of refraction change with a change in temperature. Since the effective indices of refraction change differently …
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Polarimetric Characterization Of Random Electromagnetic Beams And Applications
… are presented in this dissertation for polarimetric characterization of random electromagnetic beams and of signatures of random media in different scattering regimes and configurations. The degree of polarization rather than the full description of the state of polarization is of …
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Stokes polarimetric imaging and applications to novel materials
… a dual photo elastic modulator-based Stokes polarimetric method for polarization measurement is described, which forms the basis of the operation of a prototype polarimetric microscope. The operational characteristics of the microscope have been characterized in this study and optimized. The …
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Polarimetric SAR for the monitoring of agricultural crops
… of phenology of agricultural crops by means of polarimetric SAR measurements is a promising application of this technology, especially after the launch of a number of polarimetric satellite sensors. In this thesis C-band polarimetric SAR measurements are used to estimate pheno- logical stages of …
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A Prototype Polarimetric Camera for Unmanned Ground Vehicles
… objects in different areas of an image. A polarimetric camera not only measures intensity of light, but can also determine its state of polarization. The polarization of light is the angle the electric field of the wave of light takes as it travels. A polarimetric camera can identify the …
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Wide-field Polarimetric Second Harmonic Generation Microscopy for Histology Imaging
… disease. In this thesis, we developed a novel polarimetric wide-field SHG microscopy technique that allows for whole-slide imaging of histopathology samples. We optimized imaging conditions of wide-field microscopy by investigating photobleaching effects of SHG and MPEF signals induced with …
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Cross-validation of spaceborne radar and ground polarimetric radar observations
… measurements between space radars with polarimetric ground radar observations can be used to evaluate and validate spaceborne processing algorithms. Though conceptually straightforward, this can be a challenging task. Differences in viewing aspects between space and earth point …
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High Resolution Polarimetric Imaging Techniques for Space and Medical Applications
… to the physical and optical parameters of the polarimetric detection process are missing. Therefore, one of the purposes of the study is to explore the polarimetric phenomenology of near infrared light interaction with healthy and lung cancer monoline cells by using efficient polarimetric …
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Exploitation of infrared polarimetric imagery for passive remote sensing applications
Polarimetric infrared imagery has emerged over the past few decades as a candidate technology to detect manmade objects by taking advantage of the fact that smooth materials emit strong polarized electromagnetic waves, which can be remotely sensed by a specialized camera using a rotating polarizer …
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Full Mueller imaging: direction dependent corrections in polarimetric radio imaging
Magnetic fields pervade the universe, spanning a multitude of scales from the dipolar field on Earth, to the largest gravitationally bound structures such as galaxy clusters [1]. The magnetic fields play a vital role in the evolution of these astronomical systems. In addition to the multitude of …
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Electromagnetic wave models for polarimetric remote sensing of geophysical media
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1991.
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Polarization-dependent wavelength-selective structures for multispectral polarimetric infrared imaging
… need for compact, rugged, low-cost multispectral-polarimetric filtering technology exists in both the civilian and defense communities. Such technology can be used for object detection, object recognition, and image contrast enhancement. Mosaicked multispectral-polarimetric filter technology, …
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