Global ETD Search
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Showing 1 to 5 of 5 for “"scalar diffraction theory"”.
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A New Look at the Theory of Double-Aperture Speckle Photography
Scalar diffraction theory is used to derive the final fringe formation equations in a spatial filtering setup for a double-apertures specklegram. Both the pointwise and full-field filtering setups are analyzed. The resulting equations are shown to be more complete and exact than the equations from …
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Predicting Surface Scatter Using A Linear Systems Formulation Of Non-paraxial Scalar Diffraction
… effects from rough surfaces are non-paraxial diffraction phenomena resulting from random phase variations in the reflected wavefront. The ability to predict these effects is important in a variety of applications including x-ray and EUV imaging, the design of stray light rejection systems, and …
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Design And Assessment Of Compact Optical Systems Towards Special Effects Imaging
… key contribution of this work, the principles of scalar diffraction theory were applied to optical imaging of extended objects under quasi-monochromatic incoherent illumination in order to provide a path to more accurately model the proposed optical imaging process for special effects obtained in …
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Antennas for Terahertz Applications: Focal Plane Arrays and On-chip Non-contact Measurement Probes
… of concealed objects is achieved with <1mm diffraction limited spatial resolution. Moreover, motivated by the THz camera’s real-time image acquisition, we developed the first camera-based THz computer tomography system that allows rapid cross-sectional imaging (~2 min).For the design and …
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An experimental study of light-material interaction at subwavelength scale
… one important hurdle is the so-called diffraction limit that originates from light’s inherent wave nature. Based on the localized electromagnetic field generation due to the resonant oscillation of electron plasma in metal, plasmonics offers new opportunities for manipulating light at …