Search results
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Title
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Cutting Mechanics and Manufacture of Optics for Imaging Applications
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Author
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Troutman, John
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Date Created
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2016
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Subjects--Topical
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Mechanical engineering, Optics
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Description
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Ultraprecision diamond machining enables physical realization of freeform surfaces of nearly arbitrary complexity through turning and milling processes. Achievable form accuracies make diamond machining a viable alternative to conventional techniq...
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Title
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Experimental and computational evaluation of a vibratory finishing process
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Author
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Navare, Jayesh
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Date Created
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2017
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Subjects--Topical
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Mechanical engineering
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Description
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Vibratory finishing is among the widely recognized mass finishing techniques which is used for cleaning, deburring, edge rounding, polishing, and creating an isotropic surface finish on metal parts that have undergone previous machining operations...
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Title
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FREEFORM MEASUREMENT WITH STITCHING TALBOT INTERFEROMETER
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Author
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Furukawa, Yasunori
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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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Freeform optics are being used in many fields to realize the outstanding performance due to their high degree of freedom. To realize sufficiently high performance, it is necessary to manufacture the freeform surface with high accuracy, which requi...
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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...
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Title
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Integration of advanced manufacturing in the mechanical design of reflective optics
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Author
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Horvath, Nicholas
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Date Created
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2020
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Subjects--Topical
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Mechanical engineering, Optics
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Description
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High-performance freeform optical systems, designed for broad spectral imaging fromthe visible to the far infrared, place new demands on optical design, precision manufacturing,and precision metrology. In this dissertation, four key aspects are ad...
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Title
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Manufacture of Infrared Optics in Brittle Materials
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Author
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Owen, Joseph
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Date Created
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2015
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Subjects--Topical
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Mechanical engineering
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Description
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Infrared optics are manufactured for many different applications including: thermal imaging, surveillance, night vision, medical, laser machining, laser surgery, etc. Most infrared transparent materials are hard, brittle, or both. Unless special c...
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Title
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Manufacturing Methodologies and Optomechanics for Dynamic Freeform Optics
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Author
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Gurganus, Dustin
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Date Created
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2021
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Subjects--Topical
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Optics, Engineering, Mechanical engineering
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Description
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Freeform optics have traversed the gap from theoretical to practical application propelled by ultra-precision multi-axis machining, like diamond turning and milling. Utilized for complex infrared sensors to human vision correction, freeform optics...
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Title
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NONPROPAGATING EXCITATIONS IN 2-D
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Author
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Abney, Ray
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Date Created
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2020
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Subjects--Topical
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Physics
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Description
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Nonpropagating excitations have been studied in 1-D and in 3-D, but not so much in 2-D. So, this thesis concerns 2-D nonpropagating excitations. In particular, we construct nonpropagating excitations confined to an annulus under a time-independent...
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Title
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STRUCTURED OPTICAL MATERIALS FABRICATED USING TWO-PHOTON POLYMERIZATION
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Author
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Li, Yanzeng
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Date Created
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2020
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Subjects--Topical
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Materials science, Optics, Physics
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Description
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Artificially structured materials, which are treated as macroscopically homogeneous media, exhibit effective optical properties that can be altered by engineering the materials' intrinsic geometries at a scale much smaller than the probing electro...
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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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Surface Integrity in Diamond Machining Germanium For Infrared Optics
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Author
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Sizemore, Nicholas
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Date Created
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2020
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Subjects--Topical
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Mechanical engineering
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Description
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Ultra-precision manufacturing is a deterministic method of producing optical-grade components. Continuous and interrupted machining operations are the main focus of this research with the goal of improving the manufacturing community’s knowledge. ...
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Title
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Thermomechanical Modeling and Analysis of Precision Glass Molding Process
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Author
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Bobba, Dhanooj
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Date Created
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2023
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Subjects--Topical
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Mechanical engineering
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Description
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The tremendous development in digital technology in the last few decades has increased the demand for ultra-precision optical components with enhanced optical performance, such as aspherical or freeform lenses. Typically, lenses made of polymers h...
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Title
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Ultraprecision Diamond Machining of Polycarbonate Complex Multi-Sided Freeform Optics
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Author
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Swagler, Steven
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Date Created
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2022
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Subjects--Topical
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Optics, Mechanical engineering
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Description
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Advances in technology are driving optical systems to become more and more complex and compact. Ultra-precision machining centers have advanced to catch up with optical designs but there is a defined set of methods defining the use of the machines...
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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...
