用于精密光学腔的低损耗非晶介质超表面反射镜
Low-loss amorphous dielectric metasurface mirror for precision optical cavities
浏览论文内容
中文总结 AI 辅助
本文设计并实验实现了1064 nm波长下低损耗非晶介质超表面反射镜，峰值反射率99.10%，损耗0.26%，可将涂层布朗噪声降低3-5倍，有望提升精密光学腔性能。
中文摘要 AI 辅助
我们报道了一种在1064 nm波长下工作的低损耗介质超表面反射镜的设计与实验实现，该波长是干涉式引力波探测器的主要工作波长。该反射镜由玻璃基底上的单层二氧化钛纳米柱构成，通过导模共振实现高反射率。制备的反射镜峰值反射率为99.10%，总光学损耗为0.26%，据我们所知，这是在可见光至近红外波段工作的基底支撑的纯非晶介质超表面反射镜中实验演示的最高反射率和最低光学损耗。这种单层超表面预计在可比反射率下，相对于传统介质布拉格反射镜，可将涂层布朗噪声降低3-5倍，这将改善目前受该噪声限制的精密光学腔的性能。这些结果表明介质超表面作为下一代精密测量系统平台的潜力。
英文摘要
We report the design and experimental realization of a low-loss dielectric metasurface mirror operating at 1064 nm, the primary wavelength of interferometric gravitational-wave detectors. The mirror consists of a single layer of titanium dioxide nanopillars on a glass substrate, achieving high reflectivity via guided-mode resonance. The fabricated mirror has a peak reflectance of 99.10% with a total optical loss of 0.26%, representing, to our knowledge, the highest reflectance and lowest optical loss experimentally demonstrated in a substrate-supported purely amorphous dielectric metasurface mirror operating in the visible to near-infrared. This single-layer metasurface is projected to reduce coating Brownian noise by a factor of 3-5 relative to conventional dielectric Bragg mirrors at comparable reflectivity, which would improve the performance of precision optical cavities currently limited by this noise. These results indicate the potential of dielectric metasurfaces as a platform for next-generation precision measurement systems.
发表机构
- Massachusetts Institute of Technology（麻省理工学院）
机构由 AI 辅助整理，请以论文原文为准。
