دورية أكاديمية
Digital generation of super-Gaussian perfect vortex beams via wavefront shaping with globally adaptive feedback
| العنوان: | Digital generation of super-Gaussian perfect vortex beams via wavefront shaping with globally adaptive feedback |
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| المؤلفون: | Rui Ma, Ke Hai Luo, Jing Song He, Wei Li Zhang, Dian Yuan Fan, Anderson S. L. Gomes, Jun Liu |
| المصدر: | High Power Laser Science and Engineering, Vol 12 (2024) |
| بيانات النشر: | Cambridge University Press, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Applied optics. Photonics |
| مصطلحات موضوعية: | digital micromirror device, flat-top beam, orbital angular momentum, perfect vortex beam, random fiber laser, Applied optics. Photonics, TA1501-1820 |
| الوصف: | High-intensity vortex beams with tunable topological charges and low coherence are highly demanded in applications such as inertial confinement fusion (ICF) and optical communication. However, traditional optical vortices featuring nonuniform intensity distributions are dramatically restricted in application scenarios that require a high-intensity vortex beam owing to their ineffective amplification resulting from the intensity-dependent nonlinear effect. Here, a low-coherence perfect vortex beam (PVB) with a topological charge as high as 140 is realized based on the super-pixel wavefront-shaping technique. More importantly, a globally adaptive feedback algorithm (GAFA) is proposed to efficiently suppress the original intensity fluctuation and achieve a flat-top PVB with dramatically reduced beam speckle contrast. The GAFA-based flat-top PVB generation method can pave the way for high-intensity vortex beam generation, which is crucial for potential applications in ICF, laser processing, optical communication and optical trapping. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2095-4719 2052-3289 |
| Relation: | https://www.cambridge.org/core/product/identifier/S2095471923000919/type/journal_article; https://doaj.org/toc/2095-4719; https://doaj.org/toc/2052-3289 |
| DOI: | 10.1017/hpl.2023.91 |
| URL الوصول: | https://doaj.org/article/816520ea218340f583b6126a7d62afa5 |
| رقم الأكسشن: | edsdoj.816520ea218340f583b6126a7d62afa5 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20954719 20523289 |
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| DOI: | 10.1017/hpl.2023.91 |