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| Format: | Preprint |
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2026
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| Online-Zugang: | https://arxiv.org/abs/2603.08673 |
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| _version_ | 1866912956194750464 |
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| author | Yoo, Jae Hyuck Ray, Nathan J. Johnson, Mike A. Nguyen, Hoang T. Feigenbaum, Eyal |
| author_facet | Yoo, Jae Hyuck Ray, Nathan J. Johnson, Mike A. Nguyen, Hoang T. Feigenbaum, Eyal |
| contents | Optical metasurfaces, comprised of subwavelength nanostructures, hold a great promise to high-power laser optics but also a limited pertinence due to their currently limited aperture size, throughput and durability. Here, an alternative approach is presented, reliant on laser-controlled self-organizing mask formation followed by ion etching which results in an all-fused-silica-glass metasurface. Two 1 mm diameter optical elements (an axicon lens and a shadower) are fabricated and their optical performance is validated at 532 nm wavelength with an extremely low broadband reflection (<0.15%) - a result of the unique metasurface elements shape. The self-organizing working principle enables producing large amounts of nano-elements at-once, thus a path for aperture scaleup. It also enables generation of sub-100 nm nanoelements, thus a path to short wavelengths operation. Two key advancements towards viability are presented: a laser scan with in-situ transmission feedback enables patterning the etching mask to a prescribed nanoparticle distribution, and a crafted beyond-mask-erosion-point etching of the mask enables increasing the metasurface phase difference to at least pi, while keeping extremely low reflection across it. This paves a path to high-power lasers optics, requiring large aperture, high throughput and laser light durability. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_08673 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Low Reflectance All-Glass Metasurface Lenses Based on Laser Self-generated Nanoparticles Yoo, Jae Hyuck Ray, Nathan J. Johnson, Mike A. Nguyen, Hoang T. Feigenbaum, Eyal Optics Optical metasurfaces, comprised of subwavelength nanostructures, hold a great promise to high-power laser optics but also a limited pertinence due to their currently limited aperture size, throughput and durability. Here, an alternative approach is presented, reliant on laser-controlled self-organizing mask formation followed by ion etching which results in an all-fused-silica-glass metasurface. Two 1 mm diameter optical elements (an axicon lens and a shadower) are fabricated and their optical performance is validated at 532 nm wavelength with an extremely low broadband reflection (<0.15%) - a result of the unique metasurface elements shape. The self-organizing working principle enables producing large amounts of nano-elements at-once, thus a path for aperture scaleup. It also enables generation of sub-100 nm nanoelements, thus a path to short wavelengths operation. Two key advancements towards viability are presented: a laser scan with in-situ transmission feedback enables patterning the etching mask to a prescribed nanoparticle distribution, and a crafted beyond-mask-erosion-point etching of the mask enables increasing the metasurface phase difference to at least pi, while keeping extremely low reflection across it. This paves a path to high-power lasers optics, requiring large aperture, high throughput and laser light durability. |
| title | Low Reflectance All-Glass Metasurface Lenses Based on Laser Self-generated Nanoparticles |
| topic | Optics |
| url | https://arxiv.org/abs/2603.08673 |