Wavefront sensing based on the inverted Hartmann sensor

The classic Hartmann test consists of an array of holes to reconstruct the wavefront from the local deviation of each focal spot, and Shack-Hartmann sensor improved that with an array of microlenses. This array of microlenses imposes practical limitations when the wavefront is not into of visible wa...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Mendoza-Hernandez, Job, Lopez-Mago, Dorilian
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 28.11.2019
Subjects
Microlenses
Obstructions
Sensor arrays
Sensors
Shack-Hartmann sensors
Wave front sensors
Wave fronts
Wavelengths
Online AccessGet full text

Cover

More Information
Summary:The classic Hartmann test consists of an array of holes to reconstruct the wavefront from the local deviation of each focal spot, and Shack-Hartmann sensor improved that with an array of microlenses. This array of microlenses imposes practical limitations when the wavefront is not into of visible wavelengths, e.g., the fabrication of these. Instead, we propose a wavefront-sensing technique using an array of circular obstructions, i.e., the Hartmann sensor with an inverted Hartmann array. We show that under the same conditions the inverted Hartmann sensor and the Shack-Hartmann wavefront sensor have an equivalent spot-map to recover the wavefront. The method might used in non-visible wavelengths and in a wider range of applications.
ISSN:2331-8422