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Design method of imaging optical systems using confocal flat phase elements.

Tong Yang, Lina Gao, Dewen Cheng

|December 16, 2022

Summary

This summary is machine-generated.

A new design method for flat phase imaging systems, including diffractive optical elements and metasurfaces, offers efficient, generalized solutions for stigmatic imaging, even in nonsymmetric configurations. This approach simplifies optical system design and accelerates the development of advanced imaging technologies.

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Area of Science:

Optical Engineering
Metasurface Optics
Diffractive Optics

Background:

Flat phase elements like diffractive optical elements (DOEs), holographic optical elements (HOEs), and metasurfaces are crucial for modern imaging systems.
Existing design methods often lack generality and efficiency, particularly for nonsymmetric optical configurations.

Purpose of the Study:

To propose a generalized and efficient design method for imaging systems utilizing flat phase elements.
To enable fast calculation of phase functions for stigmatic imaging in both symmetric and nonsymmetric systems.

Main Methods:

Derivation of a generalized phase function based on confocal properties for point-to-point stigmatic imaging.
Calculation of phase functions using specified focal length or magnification and element locations.
Demonstration of design examples to validate the method's feasibility.

Main Results:

Achieved fast and accurate calculation of phase functions for stigmatic imaging.
Successfully demonstrated the method's effectiveness through various design examples.
The designed systems serve as excellent starting points for further optimization with additional phase terms.

Conclusions:

The proposed method significantly enhances design efficiency for flat phase imaging systems.
It reduces reliance on pre-existing systems and specialized expertise.
The method is readily integrable into standard optical design software.