Search results
-
-
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
-
Integration of advanced manufacturing in the mechanical design of reflective optics
-
Author
-
Horvath, Nicholas
-
Date Created
-
2020
-
Subjects--Topical
-
Mechanical engineering, Optics
-
Description
-
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...
-
-
Title
-
Investigation of impedance-matching techniques for infrared antennas
-
Author
-
Moreno Cleves, Camilo
-
Date Created
-
2020
-
Subjects--Topical
-
Electrical engineering, Optics, Physics
-
Description
-
In this study, we used scattering-scanning near-field optical microscopy (s-SNOM) to experimentally characterize several structures relevant to infrared (IR) antenna technology, by measuring the electric near-field strength as a function of positi...
-
-
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
-
Optically Projected Length Scale for Use in Photogrammetry
-
Author
-
Thewlis, Patrick
-
Date Created
-
2020
-
Subjects--Topical
-
Optics, Physics
-
Description
-
Photogrammetry is a measurement technique where 3D coordinate data and feature information can be extracted from 2D photographs or images. Length scale objects are calibrated artifacts placed into a photogrammetry scene which have precisely define...
-
-
Title
-
Partially coherent radially polarized fractional vortex beam
-
Author
-
Gbur, Greg, Zeng, Jun, Liang, Chunhao, Cai, Yangjian
-
Date Created
-
2020
-
Subjects--Topical
-
Physics, Optics
-
Description
-
A new kind of partially coherent vector beam, named a partially coherent radially polarized fractional vortex (PCRPFV) beam, is introduced as a natural extension of the recently introduced scalar partially coherent fractional vortex beams [Zeng et...
-
-
Title
-
Propagation of radially polarized Hermite non-uniformly correlated beams in a turbulent atmosphere
-
Author
-
Gbur, Greg, Yu, Jiayi, Cai, Yangjian, Lin, Rong
-
Date Created
-
2020
-
Subjects--Topical
-
Physics, Optics
-
Description
-
We study the propagation properties of a recently introduced class of structured beams, radially polarized Hermite non-uniformly correlated (RPHNUC) beams, in a turbulent atmosphere using the extended Huygens-Fresnel integral and investigate how t...
-
-
Title
-
STRUCTURED OPTICAL MATERIALS FABRICATED USING TWO-PHOTON POLYMERIZATION
-
Author
-
Li, Yanzeng
-
Date Created
-
2020
-
Subjects--Topical
-
Materials science, Optics, Physics
-
Description
-
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...
-
-
Title
-
The evolution of spectral intensity and orbital angular momentum of twisted Hermite Gaussian Schell model beams in turbulence
-
Author
-
Gbur, Greg, Yu, Jiayi, Cai, Yangjian, Lin, Rong
-
Date Created
-
2020
-
Subjects--Topical
-
Physics, Optics
-
Description
-
We introduce a new class of twisted partially coherent beams with a non-unifirm correlation structure. These beams, called twisted Hermite Gaussian Schell model (THGSM) beams, have a correlation structure related to Hermite functions and a twist f...
