Diamond Based Optical Metasurfaces for Broadband Wavefront Shaping in Harsh Environment
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2024-04-13 |
| Journal | Laser & Photonics Review |
| Authors | Xun Yang, Bo Wu, Peipei Chen, Yiyang Xie, Chaonan Lin |
| Institutions | Chalmers University of Technology, Beijing University of Technology |
| Citations | 15 |
Abstract
Section titled âAbstractâAbstract Metasurface enables a new class of âmetaâopticsâ that can manipulate light at subwavelength scale. Despite that versatile metasurfaces have been demonstrated based on a wide range of materials, the vulnerability of conventional materials to harsh environments, i.e., low resistance to corrosion, low transparency at short wavelength, and lack of thermal/mechanical stability, greatly limit their applications in extreme conditions. Diamond is wellâknown for exceptional properties, including the highest thermal conductivity, high damage resistance, extraordinary hardness, and chemical inertness. Therefore, diamond based metasurface is generally expected to benefit from its material merits for extreme use. However, the performance of diamond metasurface in harsh environments remains unexplored up to date. To address this question, this work is designed to study the suitability of singleâcrystal diamond based metasurface for broadband applications under harsh environments. As an example, diamond metasurfaces with representative functionalities, including holographic wavefrontâshaping, DUVâfocusing, are investigated under highâtemperature, acid/alkali, and abrasive conditions, respectively. The findings prove the capability of diamond metasurfaces for applications in broadband and harsh conditions, which not only provides a practical and scalable scheme to encode onâdemand functionalities into diamond, but also unlocks a capable candidate to develop robust, large bandwidth, and durable metaâoptics for advanced wavefront shaping under extreme conditions.