Search results
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Title
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WAVEGUIDE, PHOTODETECTOR, AND IMAGING APPLICATIONS OF MICROSPHERICAL PHOTONICS
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Author
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Allen, Kenneth
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Date Created
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2014
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Subjects--Topical
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Optics, Engineering, Physics
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Description
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Dielectric microspheres with diameters (D) on the order of several wavelengths of light have attracted increasing attention from the photonics community due to their ability to produce extraordinarily tightly focused beams termed "photonic nanojet...
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Title
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Vortices in coherent and partially coherent optical beams
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Author
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Stahl, Charlotte
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Date Created
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2018
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Subjects--Topical
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Optics
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Description
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Vortices in optical beams have been the subject of extensive study since their status as a generic feature of light was established. They have found extensive use in optical trapping systems, astronomy, microscopy and are being investigated for fr...
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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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SPATIAL FIELD CONTROL OF BROAD AREA SEMICONDUCTOR LASERS WITH INTEGRATED GRATING COUPLERS
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Author
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Smolski, Viktor
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Date Created
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2012
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Subjects--Topical
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Electrical engineering, Optics
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Description
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In this research, a method of designing a grating outcoupler to obtain the desired 2D-intensity profile and improved field distribution of the optical beam emitted by a grating coupled surface emitting laser is presented. The method is based on va...
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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...
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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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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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Optical Stimulation of the Prostate Nerves: A Potential Diagnostic Technique
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Author
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Tozburun, Serhat
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Date Created
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2012
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Subjects--Topical
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Optics
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Description
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There is wide variability in sexual potency rates (9 - 86%) after nerve-sparing prostate cancer surgery due to limited knowledge of the location of the cavernous nerves (CN's) on the prostate surface, which are responsible for erectile function. T...
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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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Infrared Photocurrent Spectroscopy Of Deep Levels In Mg-Doped GaN And AlxGa1-xN
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Author
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Batoni, Paolo
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Date Created
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2009
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Subjects--Topical
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Electrical engineering
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Description
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Recently, there is an increasing demand for III-nitride semiconductor based optoelectronic devices, and especially for ultraviolet (UV) and Deep UV sources and sensors; however, the development and the performance of such devices is fundamentally ...
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Title
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Index-antiguided planar waveguide lasers with large mode area
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Author
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Liu, Yuanye
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Date Created
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2017
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Subjects--Topical
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Optics, Physics
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Description
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The on-going research and application interests with high power large-mode-area (LMA) waveguide lasers, especially in fiber geometry, at the beginning of this century drive the development of many novel waveguide designs. Index antiguiding, propos...
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Title
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From Nonradiating Sources to Directionally Invisible Objects
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Author
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Hurwitz, Elisa
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Date Created
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2017
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Subjects--Topical
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Optics, Physics
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Description
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The goal of this dissertation is to extend the understanding of invisible objects, in particular nonradiating sources and directional nonscattering scatterers. First, variations of null-field nonradiating sources are derived from Maxwell's equatio...
