Search results
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Title
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ABSOLUTE DISTANCE (THICKNESS) METROLOGY USING WAVELENGTH SCANNING INTERFEROMETRY
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Author
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Suratkar, Amit
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Date Created
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2009
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Subjects--Topical
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Optics, Optical engineering, Metrology
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Description
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Wavelength scanning interferometry offers a new dimension in precision metrology by measuring the cavity length (thickness), the cavity length variation over the cavity area (flatness), and the optical homogeneity within a transparent cavity; with...
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Title
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COMPRESSIVE IMAGING AND DUAL MOIRÉ LASER INTERFEROMETER AS METROLOGY TOOLS
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Author
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Abolbashari, Mehrdad
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Date Created
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2013
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Description
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Metrology is the science of measurement and deals with measuring different physical aspects of objects. In this research the focus has been on two basic problems that metrologists encounter. The first problem is the trade-off between the range of ...
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Title
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COMPRESSIVE IMAGING AND DUAL MOIRÉ LASER INTERFEROMETER AS METROLOGY TOOLS
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Author
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Abolbashari, Mehrdad
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Date Created
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2013
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Subjects--Topical
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Optics, Engineering
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Description
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Metrology is the science of measurement and deals with measuring different physical aspects of objects. In this research the focus has been on two basic problems that metrologists encounter. The first problem is the trade-off between the range of ...
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Title
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Complex photonic crystals for broadband "all-angle" self-collimation
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Author
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Chuang, Yi-Chen
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Date Created
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2010
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Description
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Self-collimation is a dispersion property of many photonic crystals (PCs), in which light beam can propagate free of divergence in the PCs. While self-collimation is a desired property for applications related to wave guiding and light collection,...
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Title
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Complex photonic crystals for broadband "all-angle" self-collimation
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Author
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Chuang, Yi-Chen
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Date Created
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2010
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Subjects--Topical
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Optics
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Description
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Self-collimation is a dispersion property of many photonic crystals (PCs), in which light beam can propagate free of divergence in the PCs. While self-collimation is a desired property for applications related to wave guiding and light collection,...
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Title
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Design, Fabrication and Testing of Hierarchical Micro-optical Structures and Systems
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Author
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Cannistra, Aaron
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Date Created
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2011
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Subjects--Topical
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Optics
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Description
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Micro-optical systems are becoming essential components in imaging, sensing, communications, computing, and other applications. Optically based designs are replacing electronic, chemical and mechanical systems for a variety of reasons, including l...
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Title
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EXTERNAL WAVELENGTH STABILIZATION OF GRATING COUPLED SURFACE EMITTING LASERS AND APPLICATIONS
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Author
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Yilmaz, Yigit
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Date Created
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2012
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Subjects--Topical
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Electrical engineering, Optics, Electromagnetism
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Description
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In this dissertation, we explore a semiconductor optical device configuration based on non-resonant diffraction grating coupler. These devices are coupled with monolithic and external wavelength selection elements to form the resonant cavity lasin...
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Title
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Effects of Edge Roughness on Optical Scattering from Periodic Microstructures
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Author
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Bergner, Brent
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Date Created
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2009
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Description
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Planar photonic crystals and other microstructured surfaces have important applications in a number of emerging technologies. However, these structures can be difficult to fabricate in a consistent manner. Rapid, precise measurements of critical p...
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Title
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Effects of Edge Roughness on Optical Scattering from Periodic Microstructures
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Author
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Bergner, Brent
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Date Created
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2009
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Description
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Planar photonic crystals and other microstructured surfaces have important applications in a number of emerging technologies. However, these structures can be difficult to fabricate in a consistent manner. Rapid, precise measurements of critical p...
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Title
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Effects of Edge Roughness on Optical Scattering from Periodic Microstructures
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Author
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Bergner, Brent
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Date Created
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2009
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Subjects--Topical
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Optics, Nanotechnology
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Description
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Planar photonic crystals and other microstructured surfaces have important applications in a number of emerging technologies. However, these structures can be difficult to fabricate in a consistent manner. Rapid, precise measurements of critical p...
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Title
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Electromagnetic Wave Phenomena In Periodic Metastructures
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Author
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Schenk, John
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Date Created
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2010
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Description
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There is an active effort toward the development of negative index metamaterials for application in high-resolution imaging. In particular, engineering an artificial material exhibiting an index of exactly -1, may permit sub-wavelength imaging. Th...
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Title
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Electromagnetic Wave Phenomena In Periodic Metastructures
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Author
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Schenk, John
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Date Created
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2010
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Description
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There is an active effort toward the development of negative index metamaterials for application in high-resolution imaging. In particular, engineering an artificial material exhibiting an index of exactly -1, may permit sub-wavelength imaging. Th...
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Title
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Electromagnetic Wave Phenomena In Periodic Metastructures
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Author
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Schenk, John
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Date Created
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2010
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Subjects--Topical
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Electrical engineering, Optics, System theory
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Description
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There is an active effort toward the development of negative index metamaterials for application in high-resolution imaging. In particular, engineering an artificial material exhibiting an index of exactly -1, may permit sub-wavelength imaging. Th...
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Title
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Enhanced electron mobility at Gd2O3(100)/Si(100) interface: origin and applications
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Author
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Sitaputra, Wattaka
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Date Created
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2012
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Subjects--Topical
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Materials science, Electrical engineering
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Description
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A growth of a gadolinium oxide (Gd2O3) layer with (100) orientation on a Si(100) substrate was obtained for the first time using molecular beam epitaxy deposition (MBE) with the growth temperature in the range of 150-200°C and the oxygen partial p...
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Title
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FOURIER-BASED IMAGE SHARPNESS SENSOR FOR ADAPTIVE OPTICS CORRECTION
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Author
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Walker, Kristin
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Date Created
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2009
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Description
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Adaptive optics reduces undesirable turbulence effects present during propagation and imaging through the atmosphere or another random medium. Within an adaptive optics system, wavefront sensing determines the incoming wavefront errors. Image shar...
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Title
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FOURIER-BASED IMAGE SHARPNESS SENSOR FOR ADAPTIVE OPTICS CORRECTION
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Author
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Walker, Kristin
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Date Created
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2009
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Subjects--Topical
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Optics
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Description
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Adaptive optics reduces undesirable turbulence effects present during propagation and imaging through the atmosphere or another random medium. Within an adaptive optics system, wavefront sensing determines the incoming wavefront errors. Image shar...
