Wavelength-Independent Correlation Detection of Aberrations Based on a Single Spatial Light Modulator

The cumulative achievements in the fields of science and technology have allowed us to substantially approach the solution of the phase problem in optics. Among all phasometric methods, single-beam methods are the most promising, since they are more variable and versatile. Single-beam methods are based either on the analysis of the intensity distribution, as is conducted by interferometers and wavefront sensors, or on the transformation of the phase into an intensity distribution due to spatial filtering, as is conducted by holographic methods. However, all these methods have the problem of working with polychromatic radiation and require spectral filters to process such radiation. This paper presents a new approach to the synthesis of Fourier holograms used in holographic wavefront sensors that make it possible to create achromatic elements and work with white light without the use of additional filters. The approach was numerically and experimentally verified.

Automated summary

The cumulative achievements in the fields of science and technology have led to significant progress in solving the phase problem in optics. Among the various phasometric methods, single-beam methods, which are more versatile and flexible, show the most promising potential. However, existing methods face the challenge of working with polychromatic radiation, requiring the use of spectral filters. This paper introduces a new approach to the synthesis of Fourier holograms, allowing holographic wavefront sensors to work with white light without the need for additional filters. Numerical and experimental verification were conducted to validate the approach.