Nanoimprinted topological laser in the visible
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908854993813504 |
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| author | Zhang, Qiang Duan, Rui Ao, Yutian Wang, Lin Zhou, Xuehong Yang, Xuyong Yuan, Xiao-Cong Zhang, Baile Sun, Handong |
| author_facet | Zhang, Qiang Duan, Rui Ao, Yutian Wang, Lin Zhou, Xuehong Yang, Xuyong Yuan, Xiao-Cong Zhang, Baile Sun, Handong |
| contents | Nanoimprint lithography (NIL) is a widely used high-throughput fabrication technique for photonic devices, yet its reliability is often compromised by the inevitable imperfections that arise during the demolding process. Topological photonics, which harnesses topologically nontrivial structures to support defect-robust photonic states, offers a promising solution to this challenge. Here, we demonstrate a topological laser that is one-step nanoimprinted upon colloidal perovskite nanocrystals. This laser features multiple higher-order topological corner states, with topological protection provided by the structure effectively mitigating imperfections caused by the nanoimprinting process. This property enables the reliable detection of these states, which is particularly challenging to achieve in the visible spectrum. Our work establishes topological photonics as a viable pathway to enhance the reliability of NIL-based manufacturing, providing a scalable and practical route for mass-producing topological lasers with low-index materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_20879 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nanoimprinted topological laser in the visible Zhang, Qiang Duan, Rui Ao, Yutian Wang, Lin Zhou, Xuehong Yang, Xuyong Yuan, Xiao-Cong Zhang, Baile Sun, Handong Optics Mesoscale and Nanoscale Physics Applied Physics Nanoimprint lithography (NIL) is a widely used high-throughput fabrication technique for photonic devices, yet its reliability is often compromised by the inevitable imperfections that arise during the demolding process. Topological photonics, which harnesses topologically nontrivial structures to support defect-robust photonic states, offers a promising solution to this challenge. Here, we demonstrate a topological laser that is one-step nanoimprinted upon colloidal perovskite nanocrystals. This laser features multiple higher-order topological corner states, with topological protection provided by the structure effectively mitigating imperfections caused by the nanoimprinting process. This property enables the reliable detection of these states, which is particularly challenging to achieve in the visible spectrum. Our work establishes topological photonics as a viable pathway to enhance the reliability of NIL-based manufacturing, providing a scalable and practical route for mass-producing topological lasers with low-index materials. |
| title | Nanoimprinted topological laser in the visible |
| topic | Optics Mesoscale and Nanoscale Physics Applied Physics |
| url | https://arxiv.org/abs/2509.20879 |