Search results | J. Murrey Atkins Library

Title: A SINGLE-PIXEL HYPERSPECTRAL IMAGING SYSTEM FOR CANCER MARGIN DETECTION
Author: Peller, Joseph
Date Created: 2018
Subjects--Topical: Optics, Physics
Description: We have developed a hyperspectral imaging (HSI) system based on a single pixel camera design to detect differences in tissue properties based on the optical reflectance and autofluorescence spectra of the tissue. The long-term goal of this project...

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: Displacement Scale Based on Speckles
Author: Farsad, Mahsa
Date Created: 2015
Subjects--Topical: Mechanical engineering, Optics
Description: Speckle patterns are complex intensity distributions, which occur when an optically rough surface is illuminated with a coherent light. The speckle phenomenon was known to be troublesome when the laser was first introduced, but later it was discov...

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: In Situ Fringe Projection Profilometry for Laser Powder Bed Fusion Process
Author: Zhang, Bin
Date Created: 2017
Subjects--Topical: Mechanical engineering, Optics, Engineering
Description: Additive manufacturing (AM) offers an industrial solution to produce parts with complex geometries and internal structures that conventional manufacturing techniques cannot produce. However, current metal additive process, particularly the laser p...

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: LOW UNCERTAINTY SURFACE AREA MEASUREMENT USING DEFLECTOMETRY
Author: Pouya Fard, Ali
Date Created: 2018
Subjects--Topical: Optics, Engineering, Metaphysics
Description: Deflectometry has been introduced as a viable alternative to interferometric measurement of specular freeform optical surfaces. Deflectometry measurements show high repeatability; however, due to the errors remaining after the calibration and data...

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: REGULATION OF ACTOMYOSIN ATPASE
Author: Ge, Jinghua
Date Created: 2016
Subjects--Topical: Optics, Physics, Biophysics
Description: Myosin is a molecular motor that converts chemical energy to mechanical energy, thus generating force and movement in muscles and cells. Myosin interacts with two ligands, ATP (fuel) and actin filaments (motor’s tracks). Actomyosin interaction is ...

Title: Space Variant Guided Mode Resonant Filters
Author: Roth, Zachary
Date Created: 2012
Subjects--Topical: Optics, Engineering, Nanoscience
Description: 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...

Title: Stratified Fiber-Resonator: Fabrication, Characterization and Potential Applications
Author: Naqvi, Zeba
Date Created: 2017
Subjects--Topical: Optics
Description: Whispering Gallery Mode Resonators (WGMR) are compact, monolithic resonators used for photonic applications. Controlling the properties of WGM while keeping the geometry simple is desired to improve their performance, especially for sensing and no...

Title: THE FRACTIONAL BISPECTRUM NOISE REDUCTION TECHNIQUE AND APPLICATIONS IN INTERFEROMETRY
Author: Babaie, Jonathan
Date Created: 2019
Subjects--Topical: Optics
Description: In the field of optical metrology, there are many existing techniques for measurement of the surface profile or film thickness of a sample of interest. However, many of these common techniques break down when there exists a high level of noise in ...

Title: THEORY AND NUMERICAL ANALYSIS OF INDEX-ANTIGUIDED WAVEGUIDE LASERS
Author: Wang, Chaofan
Date Created: 2017
Subjects--Topical: Optics
Description: Index-antiguided (IAG) waveguide is promising for high-power application due to simple step-index structure and the property to introduce higher waveguide loss for higher-order-modes (HOMs). The loss ratio between fundamental mode (FM) and 1st HOM...