Search results
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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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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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Thulium Fiber Laser Lithotripsy
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Author
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Blackmon, Richard
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Date Created
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2013
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Subjects--Topical
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Optics, Biomedical engineering
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Description
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The Thulium Fiber Laser (TFL) has been studied as a potential alternative to the conventional Holmium:YAG laser (Ho:YAG) for the treatment of kidney stones. The TFL is more ideally suited for laser lithotripsy because of the higher absorption coef...
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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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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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Noninvasive Laser Vasectomy
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Author
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Cilip, Christopher
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Date Created
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2012
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Subjects--Topical
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Optics, Engineering, Biomedical engineering
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Description
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Development of a noninvasive vasectomy technique may eliminate male fear of complications (incision, bleeding, infection, and scrotal pain) and result in a more popular procedure. These studies build off previous studies that report the ability to...
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Title
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Optical super-resolution and periodical focusing effects by dielectric microspheres
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Author
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Darafsheh, Arash
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Date Created
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2013
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Subjects--Topical
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Optics, Physics, Biomedical engineering
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Description
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Optical microscopy is one of the oldest and most important imaging techniques; however, its far-field resolution is diffraction-limited. In this dissertation, we proposed and developed a novel method of optical microscopy with super-resolution by ...
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Title
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Use of Optical Superbeams in Atmospheric Turbulence Applications
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Author
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Gu, Yalong
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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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The use of nonconventional beam classes in turbulence applications is investigated. Through the study on pseudo-Bessel correlated beam propagation in the atmosphere, it is shown that scintillation reduction by a partially coherent beam can be obta...
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Title
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Novel Fiber Optic Tip Designs and Devices For Laser Surgery
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Author
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Hutchens, Thomas
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Date Created
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2013
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Subjects--Topical
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Optics
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Description
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Fiber optic delivery of laser energy has been used for years in various types of surgical procedures in the human body. Optical energy provides several benefits over electrical or mechanical surgery, including the ability to selectively target spe...
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Title
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Space Variant Guided Mode Resonant Filters
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Author
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Roth, Zachary
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Date Created
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2012
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Subjects--Topical
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Optics, Engineering, Nanoscience
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Description
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Guided mode resonance filters (GMRF) combine subwavelength gratings and planar slab waveguides to create highly efficient, narrow linewidth spectral filters. Resonances between diffracted orders of the SWG and the waveguide provide the mechanism f...
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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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PHASE STRUCTURED WAVEFIELDS WITH PHASE SINGULARITIES AND BISPECTRAL PROPERTIES
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Author
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Scipioni, Marco
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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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The work presented in this dissertation can be subdivided into two parts. The first part illustrates the novel use of a 37 actuator segmented deformable mirror for the creation of optical vortex beams ranging in topological charge from 1 to 10. Th...
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Title
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SIGNAL PROCESSING BASED METHOD FOR SOLVING INVERSE SCATTERING PROBLEMS
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Author
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Shahid, Umer
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Date Created
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2010
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Subjects--Topical
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Optics, Biomedical engineering, Remote sensing
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Description
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The problem of reconstructing an image of the permittivity distribution inside a penetrable and strongly scattering object from a finite number of noisy scattered field measurements has always been very challenging because it is ill-posed in natur...
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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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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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SCALABLE HIGH-CAPACITY HIGH-FAN-OUT OPTICAL NETWORKS FOR CONSTRAINED ENVIRONMENTS
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Author
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Syed, Ali
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Date Created
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2012
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Subjects--Topical
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Optics, Communication
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Description
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The investigations carried out as part of the dissertation address the architecture and application of optical access networks pertaining to high-capacity and high fan-out applications such as in-flight entertainment (IFE) and video-gaming environ...