Aplanatic (or Cartesian) optical surfaces

Aplanatic grazing incidence diffraction grating: a new optical element.

Aberrations of flat lenses and aplanatic metasurfaces.

A study of optical aberrations for flat lenses based on phase discontinuities is reported. The wave aberration function and the analytical expression of the aberrations up to the 4th order are derived to describe the performance of both ideal and practical flat lenses. We find that aberration-free focusing is possible under axial illumination but off-axis aberrations appear when the excitation ...

A Cartesian Slab Based Multiblocking Strategy for Irregular Cylindrical Surfaces

Cylindrical surfaces of many irregularities populate aerospace and automotive engine components. Many of these surfaces represent power transmitting shafts and rotary mating parts that require structured meshes to expedite contact and other finite element analyses with their mates. This poses a challenge to surface and volume mesh generators. In this paper a novel method of multiblocking based ...

Optical rectification at semiconductor surfaces.

Tribology of Manufactured Optical Surfaces

Optical components of non-planar geometry require special machining to produce. Single point diamond turning is the manufacturing method of choice to produce these surfaces. Three main factors contribute to the quality of these surfaces. Machine accuracy has shown improvements with the increased use of air bearings. Tool wear and design are shown to be effected by the crystal orientation of the...