Search results
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Title
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A Detailed Description of Keldysh's Model of Photoionization
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Author
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Darden, Kenan
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Date Created
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2023
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Subjects--Topical
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Physics, Optics, Quantum theory
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Description
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Leonid Keldysh’s 1965 paper "Ionization in the Field of a Strong Electromagnetic Wave" contains useful and simple-to-implement equations predicting the rate of photoionization in both atomic gasses and general crystalline solids. Crucially, his re...
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Title
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A MODIFIED SELF-INTERFERENCE BASED INCOHERENT DIGITAL HOLOGRAPHIC RECORDING SYSTEM
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Author
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Mishra, Abhinav
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Date Created
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2019
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Subjects--Topical
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Mechanical engineering, Optics
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Description
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A Fresnel-type self-interference based incoherent digital holographic system that can measure the intensity and direction of incoming light field is proposed. This system is composed primarily of a convex lens as an objective, a linear polarizer, ...
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Title
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DUAL PROJECTION FRINGE PROJECTION PROFILOMETRY
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Author
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Venkatesh, Bhanu teja
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Date Created
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2019
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Subjects--Topical
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Optics, Engineering, Three-dimensional modeling
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Description
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Fringe-pattern projection (FPP) techniques are widely used for surface-shape measurement in a wide range of applications like object and scene modeling, part inspection, and reverse engineering. This thesis presents a way to increase the accuracy ...
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Title
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Design for Metrology of Freeform Optics
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Author
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Venditti, Kristen
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Date Created
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2020
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Subjects--Topical
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Mechanical engineering, Optics, Engineering
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Description
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Freeform optics offer significant advantages over the conventional aspheric optics, but pose new challenges in metrology and manufacturing. The spatial frequencies of an optical surface that must be measured have changed due to the progression of ...
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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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OPTICAL INSTRUMENTATION USING GEOMETRIC PHASE ELEMENTS
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Author
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Light, Alyson
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Date Created
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2020
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Subjects--Topical
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Mechanical engineering, Optics, Engineering
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Description
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Traditional optical instrumentation typically requires a controlled, stable environment, and this limits systems to a laboratory setting. For in-situ metrology applications and outdoor measurements, novel methods that are compact and stable are re...
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Title
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OPTICAL METROLOGY OF FREEFORM OPTICS UTILIZING INTERFEROMETRIC STITCHING
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Author
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Hovis, Clark
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Date Created
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2019
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Subjects--Topical
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Mechanical engineering, Optics, Engineering
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Description
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The utilization of interferometric stitching with coherence scanning interferometers has allowed these instruments to measure much larger areas than a single site measurement would permit. This has a major impact on the measurement of mid-spatials...
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Title
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RED FLUORESCENCE IN BOVINE SERUM ALBUMIN – GOLD COMPLEXES
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Author
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Dixon, Jacob
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Date Created
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2019
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Subjects--Topical
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Optics, Physics
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Description
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Bovine serum albumin (BSA)-gold (Au) complexes have been studied in great detail due to their unique red fluorescent (λem = 640 nm) properties, since being initially described by Xie et al. (J. Am. Chem. Soc. 2009, 131, 888-889) as a Au25 nanoclus...
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Title
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Single-shot Quantitative Phase Microscopy in a Common-path Configuration
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Author
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Norton, Brandon
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Date Created
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2023
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Subjects--Topical
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Optics, Physics
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Description
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Quantitative Phase Microscopy (QPM) is a technique frequently used in microscopy togather information about transparent objects that provide a phase shift relative to their background. We propose a technique that employs a liquid crystal in a comm...
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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...