Conventional microscopes, which rely on multiple objective lenses for varying magnifications, are bulky, complex, and costly, making them difficult to integrate into compact devices. They require frequent manual adjustments, complicating the imaging process and increasing maintenance burdens. This paper explores the potential of single ultrathin graphene metalens to address this issue. We propose and demonstrate a 200 nm thin multiaxial focus graphene metalens with high-quality focusing, designed using spatial multiplexing and fabricated by one-step laser nanoprinting. A five-focal graphene metalens has been created, achieving clear imaging with varying magnifications across a broadband covering the entire visible wavelength. The graphene metalens has significantly reduced the size of the imaging system by orders of magnitude and holds profound potential for facilitating the integration and miniaturization of optical microscopic systems.

中文翻译：

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用于不同放大倍率宽带成像的 200 纳米薄多焦点氧化石墨烯超透镜


传统显微镜依靠多个物镜进行不同的放大倍率，体积庞大、复杂且成本高昂，因此难以集成到紧凑型设备中。它们需要频繁的手动调整，使成像过程复杂化并增加维护负担。本文探讨了单个超薄石墨烯超透镜在解决这个问题方面的潜力。我们提出并演示了一种具有高质量聚焦的 200 nm 薄型多轴聚焦石墨烯超透镜，该超透镜使用空间多路复用设计并通过一步激光纳米打印制造。已经创建了五焦点石墨烯超透镜，可在覆盖整个可见波长的宽带上实现具有不同放大倍率的清晰成像。石墨烯超透镜将成像系统的尺寸显著缩小了几个数量级，并且在促进光学显微镜系统的集成和小型化方面具有巨大的潜力。