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Wavefront control capability in a modal lens with segmented circular peripheral electrodes.

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|December 1, 2023

Summary

This study investigates a tunable liquid crystal lens (TLCL) capable of dynamically generating wavefronts. The segmented electrode design enables precise control for adaptive optics applications.

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Area of Science:

Optics and Photonics
Materials Science

Background:

Adaptive optics systems require precise wavefront control.
Liquid crystal lenses offer tunable optical properties.

Purpose of the Study:

To investigate the dynamic wavefront generation capabilities of a segmented electrically tunable liquid crystal lens (TLCL).
To characterize the influence functions and crosstalk of the TLCL for adaptive optical system design.

Main Methods:

Utilized a TLCL with a peripheral circular electrode divided into eight individually controlled segments.
Adjusted voltage and frequency of electrical signals to characterize influence functions and crosstalk.
Produced various wavefronts in a closed-loop control mode, described using Zernike polynomials.

Main Results:

Demonstrated the TLCL's capability to generate a rich set of influence functions.
Characterized the crosstalk between different electrode segments.
Successfully produced and described various dynamic wavefronts using Zernike polynomials.

Conclusions:

The segmented TLCL offers dynamic wavefront control capabilities.
The obtained results are valuable for designing adaptive optical systems requiring dynamic wavefront manipulation.