Single-pixel mode self-reference common-path holographic method

By using a single-pixel mode self-reference common path holographic method in single-pixel common path interferometry, using modulation base and off-axis grating to generate a coding mode, dynamically introducing reference light, the problems of high device complexity and waste of resources in the prior art are solved, and high resolution and full field of view are achieved.

CN119739018AActive Publication Date: 2025-04-01TAIYUAN UNIVERSITY OF TECHNOLOGY
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Patent Information

Application Number
CN202510077461.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-09-02
Filing Date
2025-01-17
Publication Date
2025-04-01
Estimated Expiration
2045-01-17

AI Technical Summary

Technical Problem

In the spatial wavefront detection, the existing single-pixel common-path interferometry method has problems such as high device complexity, poor anti-interference ability, waste of phased array pixel resources, limited imaging resolution and field of view, and low light utilization efficiency.

Method used

The single-pixel mode self-reference common path holographic method is adopted to generate an encoding mode through a single-pixel modulation basis superimposed interference phase shift mode or off-axis grating, dynamically introduce reference light, make full use of the pixel resources of the phased array, and realize high resolution of wavefront complex amplitude and full field of view imaging.

Benefits of technology

It realizes high resolution and full-field imaging of wavefront complex amplitude, taking into account both imaging resolution and imaging field, improving light utilization and improving wavefront imaging performance.

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Abstract

The invention belongs to the crossing field of spatial wavefront measurement and single-pixel imaging. At present, pixels of a phased array cannot be fully utilized in single-pixel common-path wavefront imaging, so that wavefront imaging resolution is reduced, or an imaging view field is limited, and wavefront imaging performance is not high. The invention provides a single-pixel mode self-reference common-path holographic method, which is characterized in that a single-pixel modulation base superposition interference necessary phase shift mode or an off-axis grating generation coding mode is adopted, wavefront of an unknown light field is sampled, reference light is dynamically introduced, pixel resources of a phased array are fully utilized, imaging resolution and an imaging view field are taken into consideration, and the holographic imaging precision is improved. And the light utilization rate is higher. The method can be expanded to a wider wave band, is especially suitable for wavefront complex amplitude measurement under the condition that an array detector is expensive or does not exist, and has a wide application prospect in the fields of quantitative phase microscopic imaging, adaptive optics, imaging through scattering media, quantum light field measurement and the like.
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