Search results | J. Murrey Atkins Library

Title: ABSOLUTE DISTANCE (THICKNESS) METROLOGY USING WAVELENGTH SCANNING INTERFEROMETRY
Author: Suratkar, Amit
Date Created: 2009
Subjects--Topical: Optics, Optical engineering, Metrology
Description: 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...

Title: COMPRESSIVE IMAGING AND DUAL MOIRÉ LASER INTERFEROMETER AS METROLOGY TOOLS
Author: Abolbashari, Mehrdad
Date Created: 2013
Subjects--Topical: Optics, Engineering
Description: 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 ...

Title: Complex photonic crystals for broadband "all-angle" self-collimation
Author: Chuang, Yi-Chen
Date Created: 2010
Subjects--Topical: Optics
Description: 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,...

Title: Design, Fabrication and Testing of Hierarchical Micro-optical Structures and Systems
Author: Cannistra, Aaron
Date Created: 2011
Subjects--Topical: Optics
Description: 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...

Title: EXTERNAL WAVELENGTH STABILIZATION OF GRATING COUPLED SURFACE EMITTING LASERS AND APPLICATIONS
Author: Yilmaz, Yigit
Date Created: 2012
Subjects--Topical: Electrical engineering, Optics, Electromagnetism
Description: 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...

Title: Effects of Edge Roughness on Optical Scattering from Periodic Microstructures
Author: Bergner, Brent
Date Created: 2009
Subjects--Topical: Optics, Nanotechnology
Description: 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...

Title: Electromagnetic Wave Phenomena In Periodic Metastructures
Author: Schenk, John
Date Created: 2010
Subjects--Topical: Electrical engineering, Optics, System theory
Description: 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...

Title: Enhanced electron mobility at Gd2O3(100)/Si(100) interface: origin and applications
Author: Sitaputra, Wattaka
Date Created: 2012
Subjects--Topical: Materials science, Electrical engineering
Description: 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 an...

Title: FOURIER-BASED IMAGE SHARPNESS SENSOR FOR ADAPTIVE OPTICS CORRECTION
Author: Walker, Kristin
Date Created: 2009
Subjects--Topical: Optics
Description: 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...

Title: INGAN/GAN MULTIPLE QUANTUM WELL STRUCTURES: SUBMICRON STRUCTURAL, OPTICAL, ELECTRICAL AND CHEMICAL PROPERTIES
Author: Li, Ying
Date Created: 2013
Subjects--Topical: Materials science, Electrical engineering, Optics
Description: In this work, a novel approach has been implemented to investigate the submicron (30nm spatial resolution) structural and optical properties of bulk GaN, InGaN/GaN Multiple Quantum Well (MQW), p-typle AlGaN capped MQW, and full Light Emitting Diod...

Title: INTERFEROMETRIC TECHNIQUE FOR MICROSTRUCTURE METROLOGY USING AN INDEX MATCHING LIQUID
Author: Purcell, Daryl
Date Created: 2010
Subjects--Topical: Optics
Description: Non-null interferometry offers a viable alternative to traditional interferometric testing of aspheric micro-lenses since computer generated holograms or null optics whose fabrication and testing are very expensive, are not required. However, due ...

Title: Intracellular Subsurface Imaging Using a Hybrid Shear-Force Feedback/ Scanning Quantitative Phase Microscopy Technique
Author: Edward, Kert
Date Created: 2009
Subjects--Topical: Optics
Description: Quantitative phase microscopy (QPM) allows for the imaging of translucent or transparent biological specimens without the need for exogenous contrast agents. This technique is usually applied towards the investigation of simple cells such as red b...

Title: MECHANISTIC STUDY OF SELF-ASSEMBLED TUNGSTEN NANOGRATINGS ON SOLIDS INDUCED BY FEMTOSECOND LASER BEAM
Author: Tang, Mingzhen
Date Created: 2010
Subjects--Topical: Optics
Description: This dissertation describes a mechanistic study on the spontaneous formation of tungsten nanograting induced by a 400 nm femtosecond laser beam on solids observed in laser induced chemical vapor deposition configuration. The formed tungsten nanogr...

Title: Noninvasive Laser Vasectomy
Author: Cilip, Christopher
Date Created: 2012
Subjects--Topical: Optics, Engineering, Biomedical engineering
Description: 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...

Title: Novel Fiber Optic Tip Designs and Devices For Laser Surgery
Author: Hutchens, Thomas
Date Created: 2013
Subjects--Topical: Optics
Description: 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...

Title: Optical Stimulation of the Prostate Nerves: A Potential Diagnostic Technique
Author: Tozburun, Serhat
Date Created: 2012
Subjects--Topical: Optics
Description: 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...

Title: Optical super-resolution and periodical focusing effects by dielectric microspheres
Author: Darafsheh, Arash
Date Created: 2013
Subjects--Topical: Optics, Physics, Biomedical engineering
Description: 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 ...

Title: PHASE STRUCTURED WAVEFIELDS WITH PHASE SINGULARITIES AND BISPECTRAL PROPERTIES
Author: Scipioni, Marco
Date Created: 2010
Subjects--Topical: Optics
Description: 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...

Title: SCALABLE HIGH-CAPACITY HIGH-FAN-OUT OPTICAL NETWORKS FOR CONSTRAINED ENVIRONMENTS
Author: Syed, Ali
Date Created: 2012
Subjects--Topical: Optics, Communication
Description: 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...

Title: SIGNAL PROCESSING BASED METHOD FOR SOLVING INVERSE SCATTERING PROBLEMS
Author: Shahid, Umer
Date Created: 2010
Subjects--Topical: Optics, Biomedical engineering, Remote sensing
Description: 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...