Angle-based wavefront sensing enabled by the near fields of flat optics
There is a long history of using angle sensors to measure wavefront. The best example is the Shack-Hartmann sensor. Compared to other methods of wavefront sensing, angle-based approach is more broadly used in industrial applications and scientific ...
Soongyu Yi+5 more
semanticscholar +1 more source
Confusion in differential piston measurement with the pyramid wavefront sensor
Context. The pyramid was proven to be a highly sensitive and versatile wave-front sensor (WFS) and has been selected to be installed on the single conjugate adaptive optics (AO) systems of the extremely large telescope (ELT).
A. Bertrou-Cantou+6 more
semanticscholar +1 more source
Turbulent parameters at different heights in the atmosphere. Shack–Hartmann wavefront sensor data
The paper presents the results of studies of wavefront distortions at different heights in the atmosphere. We have used measurement wavefront data to determine optical turbulence parameters along the line of sight of the Large Solar Vacuum Telescope ...
Shikhovtsev A. Y.+5 more
doaj +1 more source
Study of a MEMS-based Shack-Hartmann wavefront sensor with adjustable pupil sampling for astronomical adaptive optics [PDF]
We introduce a Shack-Hartmann wavefront sensor for adaptive optics that enables dynamic control of the spatial sampling of an incoming wavefront using a segmented mirror microelectrical mechanical systems (MEMS) device.
Baranec, Christoph, Dekany, Richard
core +1 more source
Tissue-Saving Zernike Terms Selection in Customized Treatments for Refractive Surgery
Purpose: To study the possibility of performing customized refractive surgery minimising the amount of ablated tissue without compromising visual quality.
Samuel Arba-Mosquera+2 more
doaj +1 more source
Compressive Wavefront Sensing with Weak Values [PDF]
We demonstrate a wavefront sensor based on the compressive sensing, single-pixel camera. Using a high-resolution spatial light modulator (SLM) as a variable waveplate, we weakly couple an optical field's transverse-position and polarization degrees of ...
Howell, John C.+2 more
core +3 more sources
Guidestar-free image-guided wavefront shaping [PDF]
Optical imaging through turbid samples and fibers is made possible by adaptive correction of scattering guided by image quality. Optical imaging through scattering media is a fundamental challenge in many applications.
Tomer Yeminy, O. Katz
semanticscholar +1 more source
Centre Symmetry Sets of Families of Plane Curves
We study centre symmetry sets and equidistants for a I-parameter family of plane curves where, for a special member of the family, there exist two inflexions with parallel tangents.
Giblin Peter, Reeve Graham
doaj +1 more source
A review of higher order aberrations of the human eye
Background: This literature review is part of a research study for aberration-correcting soft contact lenses, where wavefront aberrometry was utilised.
Ayesha Suliman, Alan Rubin
doaj +1 more source
Computational Method for Wavefront Sensing Based on Transport-of-Intensity Equation
Recently the transport-of-intensity equation as a phase imaging method turned out as an effective microscopy method that does not require the use of high-resolution optical systems and a priori information about the object.
Iliya Gritsenko+4 more
doaj +1 more source