High-Uniformity Flat-Top Light Spot Based on a Dielectric Metasurface.

Xinxin Pu, Wenhao Guo, Jinyao Hou, Yechuan Zhu, Xueping Sun, Shun Zhou, Weiguo Liu

Abstract read

In one paragraph

Article in Nanomaterials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

7 authors.

Xinxin PuShaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi'an Techonlogical University, Xi'an 710021, China.

Wenhao GuoShaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi'an Techonlogical University, Xi'an 710021, China.

Jinyao HouShaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi'an Techonlogical University, Xi'an 710021, China.

Yechuan ZhuShaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi'an Techonlogical University, Xi'an 710021, China.

Xueping SunShaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi'an Techonlogical University, Xi'an 710021, China.ORCID 0000-0002-1111-9686

Shun ZhouShaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi'an Techonlogical University, Xi'an 710021, China.

Weiguo LiuShaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi'an Techonlogical University, Xi'an 710021, China.ORCID 0000-0003-4789-821X

Funding

National Natural Science Foundation of China No. 52075410National Natural Science Foundation of China No. 52305613

6 · The paper itself

Abstract

With the rapid development of laser processing and infrared imaging, the demand for flat-top beams with high uniformity has become increasingly urgent. Conventional beam-shaping techniques based on bonded aspheric lenses are inherently bulky and inflexible, which limits their compatibility with modern optical systems. In this work, we propose a dielectric metasurface for laser beam shaping operating at 1064 nm, where the target phase distribution is derived by the given initial phase and is represented by a hyperbolic phase. An inverse optimization algorithm is proposed to optimize the unit cell consisting of silicon carbide (SiC) nanopillars and the silicon dioxide (SiO

Indexed as

flat-top beamslaser beam shapingmetasurfacephase control

Identifiers

PMID41677557

DOI10.3390/nano16030208

PMCPMC12899739

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.