Search results | J. Murrey Atkins Library

Title: A Detailed Description of Keldysh's Model of Photoionization
Author: Darden, Kenan
Date Created: 2023
Subjects--Topical: Physics, Optics, Quantum theory
Description: 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...

Title: A MODIFIED SELF-INTERFERENCE BASED INCOHERENT DIGITAL HOLOGRAPHIC RECORDING SYSTEM
Author: Mishra, Abhinav
Date Created: 2019
Subjects--Topical: Mechanical engineering, Optics
Description: 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, ...

Title: A THEORETICAL PERFORMANCE STUDY OF AN EXTERNAL CAVITY FIBER FABRY- PEROT INTERFEROMETER FOR DISPLACEMENT MEASUREMENT
Author: Arumugam, Kumar
Date Created: 2015
Subjects--Topical: Mechanical engineering, Optics, Meteorology
Description: The objective of this research is to explore a mathematical model developed by Wilkinson and Pratt for the external cavity fiber-based Fabry-Perot interferometer (EFPI) and to create a Michelson interferometer setup to validate a frequency modulat...

Title: DUAL PROJECTION FRINGE PROJECTION PROFILOMETRY
Author: Venkatesh, Bhanu teja
Date Created: 2019
Subjects--Topical: Optics, Engineering, Three-dimensional modeling
Description: 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 ...

Title: Design for Metrology of Freeform Optics
Author: Venditti, Kristen
Date Created: 2020
Subjects--Topical: Mechanical engineering, Optics, Engineering
Description: 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 ...

Title: Experimental Study on Autocorrelated Femtosecond-Laser Ablation of Monolayer Transition Metal Dichalcogenides
Author: Obeid, Joseph
Date Created: 2021
Subjects--Topical: Optics, Physics
Description: In this experimental study, we use a pair of 800 nm 180 fs ultrafast laser pulses to explore time-resolved enhanced ablation of two monolayer transitional metal dichalcogenides (TMDs). A 2D crystal structure gives monolayer TMDs their unique prope...

Title: FREEFORM MEASUREMENT WITH STITCHING TALBOT INTERFEROMETER
Author: Furukawa, Yasunori
Date Created: 2018
Subjects--Topical: Optics
Description: 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...

Title: Interaction of femtosecond laser beam with atmospheric low temperature plasmas and electric fields
Author: Davda, Kirtan
Date Created: 2017
Subjects--Topical: Optics, Physics, Power resources
Description: In this work, the influence of electric fields and atmospheric plasma on the behavior of an ultrafast femtosecond laser beam is being studied. A femtosecond laser pulse has an ability to self-focus in air and produce confined narrow channels of hi...

Title: OPTICAL INSTRUMENTATION USING GEOMETRIC PHASE ELEMENTS
Author: Light, Alyson
Date Created: 2020
Subjects--Topical: Mechanical engineering, Optics, Engineering
Description: 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...

Title: OPTICAL METROLOGY OF FREEFORM OPTICS UTILIZING INTERFEROMETRIC STITCHING
Author: Hovis, Clark
Date Created: 2019
Subjects--Topical: Mechanical engineering, Optics, Engineering
Description: 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...

Title: RED FLUORESCENCE IN BOVINE SERUM ALBUMIN – GOLD COMPLEXES
Author: Dixon, Jacob
Date Created: 2019
Subjects--Topical: Optics, Physics
Description: 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...

Title: RESOLUTION ANALYSIS OF FILMS WITH EMBEDDED SPHERES FOR IMAGING OF NANOPLASMONIC ARRAYS
Author: Farahi, Navid
Date Created: 2015
Subjects--Topical: Optics, Physics
Description: With the advent of microsphere assisted microscopy in 2011, this technique emerged as a simple and easy way to obtain optical super-resolution. Although the possible mechanisms of imaging by microspheres are debated in the literature, most of the ...

Title: Single-shot Quantitative Phase Microscopy in a Common-path Configuration
Author: Norton, Brandon
Date Created: 2023
Subjects--Topical: Optics, Physics
Description: 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...

Title: Spatially Resolved Photoluminescence Lifetime Mapping in the Vicinity of Extended Defects in Semiconductors Using a Time Correlated Single Photon Counting System and Confocal Photoluminescence Microscopy
Author: Mode, Timothy
Date Created: 2016
Subjects--Topical: Optics, Physics
Description: Photoluminescence mapping and time resolved photoluminescence imaging have previously been used to study charge carrier dynamics in bulk semiconductors. Recently, our research group has used spatially resolved PL mapping to examine and model carri...

Title: The Evalution of Chemical Wear on Single Crystal Diamond Tools while Diamond Turning a Binary Cu-Ni Alloy System
Author: Browy, Eric
Date Created: 2014
Subjects--Topical: Mechanical engineering, Optics, Engineering
Description: The current work describes the evaluation of chemical wear on diamond tools while diamond turning copper nickel alloys of varying composition. The primary goal of my project is to quantify the chemical wear of single crystal diamond tools while di...

Title: Ultraprecision Diamond Machining of Polycarbonate Complex Multi-Sided Freeform Optics
Author: Swagler, Steven
Date Created: 2022
Subjects--Topical: Optics, Mechanical engineering
Description: 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...