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MID-SPATIAL FREQUENCY CHARACTERIZATION AND SPECIFICATION FOR FREEFORM SURFACES USING ZERNIKE POLYNOMIALS
Title
MID-SPATIAL FREQUENCY CHARACTERIZATION AND SPECIFICATION FOR FREEFORM SURFACES USING ZERNIKE POLYNOMIALS
Author
Hosseinimakarem, Zahra
Date Created
2017
Subjects--Topical
Optics, Engineering
Description
Mid-spatial frequency on freeform optical elements induces small-angle scatter and affects the optical performance. Fabrication techniques involved in making freeform surfaces leave tooling marks on the surface due to the sub-aperture nature of th...
Manufacturing Methodologies and Optomechanics for Dynamic Freeform Optics
Title
Manufacturing Methodologies and Optomechanics for Dynamic Freeform Optics
Author
Gurganus, Dustin
Date Created
2021
Subjects--Topical
Optics, Engineering, Mechanical engineering
Description
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...
PERFORMANCE AND SPECIFICATION OF OPTICAL COMPONENTS WITH MID-SPATIAL FREQUENCY SURFACE ERRORS
Title
PERFORMANCE AND SPECIFICATION OF OPTICAL COMPONENTS WITH MID-SPATIAL FREQUENCY SURFACE ERRORS
Author
Aryan, Hamidreza
Date Created
2019
Subjects--Topical
Mechanical engineering, Optics, Engineering
Description
The advent of sub-aperture computer-numerically controlled (CNC) manufacturing techniques has enabled new opportunities for high-performance optical components and systems. Freeform and other challenging designs are now possible like never before....
Space Variant Guided Mode Resonant Filters
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...