基于反向设计的简单反射金属膜，用于超高效率自由空间波长分配器

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2024-03-12 DOI:10.35848/1882-0786/ad2c00

Chao Wang, Yunpeng Hao, Boqi Wu, Fan Yang, Chunlei Zhao, Yaodan Chi and Xiaotian Yang

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引用次数: 0

摘要

我们提出了两种采用逆向设计的中红外波段高效自由空间分波器。基于非正常反射原理的分波器通过控制相位分布实现了 22.00° 和 10.92° 的分束角，两个波长的反射效率均超过 50%。基于 Metalens 概念设计的波长分配器可同时实现聚焦和分束功能。它的焦距为 100 μm，相对焦距为 100 μm。最重要的是，两个波长的聚焦效率分别达到了令人印象深刻的 48.59% 和 72.51%。

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A simple reflective metalens based on reverse design for an ultra-high-efficiency free space wavelength splitter

We propose two kinds of high-efficiency free-space wave splitters in the mid-IR band using reverse design. The wavelength divider based on the abnormal reflection principle realizes a beam-splitting angle of 22.00° and 10.92° by controlling the phase distribution, and the reflection efficiency of both wavelengths exceeds 50%. The wavelength divider designed based on the concept of metalens simultaneously accomplishes the functions of focusing and beam splitting. It has a focal length of 100 μm and a relative focal position of 100 μm. Most importantly, the focusing efficiency for the two wavelengths reaches an impressive 48.59% and 72.51%, respectively.

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来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).