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 12 of 12 for “"polarized radiation"”.
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The transfer of polarized radiation in astrophysical masers in the presence of magnetic fields
Restriction data tranferred 2014-07-01T11:13:46-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis
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The transfer of polarized radiation in astrophysical masers in the presence of magnetic fields
Polarized emission from astrophysical masers can provide important information about physical conditions in both star forming and circumstellar environments. Calculations are performed which give the spectra of the emergent maser radiation for different magnetic fields, radiative intensities, decay …
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Detecting the magnetic cosmic web through deep radio polarization imaging
… fields in the cosmos. Faraday rotation of polarized radiation provides one of the methods to observe magnetic fields. Measuring the rotation of the polarisation angle of radiation from an extragalactic source over a broad radio bandwidth allows us to infer the properties of the magnetic …
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Numerical and experimental analysis of circularly polarized radiating line antennas
… radiating lines for producing circularly polarized radiation. A numerical study of the Annular Sector Radiating Line (ANSERLIN) antenna was undertaken using the surface patch formulation of the electric-field integral equation, and the results were generally consistent with measured data …
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Quantum dynamics in laser–assisted collisions, laser–molecule interactions, and particle–surface scattering
… collisions it is shown, that strong circularly polarized radiation significantly alters the capture and ionization probabilities and results in a dichroism with respect to the helicity. In a pump – control – probe scheme, “stroboscopic” exposure of a nuclear wave packet of the deuterium …
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Vibrational Spectroscopy and Atomic Force Microscopy Studies of Silane Adsorption onto Silicon and Glass.
… and by float glass substrates for AFM. Polarized radiation was used in the FTIR-ATR experiments to determine the relative dichroic ratios of cast and self-assembled films on silicon, and these results were compared with a theoretical model. The conclusion was that the cast silane layers …
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Structure analysis of adsorbates on single crystal surfaces using photoelectron diffraction
… the effect of using vertically and horizontally polarized radiation on PhD modulation amplitudes and more importantly the sensitivity of each method to various structural parameters. It has been shown theoretically that perpendicularly polarized photoelectron diffraction (PPPhD) yields modulation …
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HIGH-PERFORMANCE ANTENNA ARRAYS FOR MULTIFUNCTION PHASED ARRAY RADAR (MPAR) APPLICATION
… dissertation is to propose high-performance dual-polarized antenna arrays with high input isolation and low cross-polarization level for multifunction phased radar application. To do so, four different types of dual-polarized microstrip patch antenna arrays are presented. In the proposed patch …
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Theoretical models for the polarization of astronomical masers
Made available in DSpace on 2011-06-08T16:51:06Z (GMT). No. of bitstreams: 1 1983_western.pdf: 4623969 bytes, checksum: 5f2feacd63b00f19e36b584d51336f60 (MD5) Previous issue date: 1983
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The transfer of resonance line polarization with partial frequency redistribution in the presence of arbitrary magnetic fields
… of spectral lines. The scattering of anisotropic radiation by an atomic system is one such mechanism, which most notably causes the scattered radiation to be linearly polarized. Such scattering polarization can be further modified by magnetic fields through the joint action of the Hanle and Zeeman …