Inverse‐Designed Meta‐Optics with Spectral‐Spatial Engineered Response to Mimic Color Perception
Inverse‐Designed Meta‐Optics with Spectral‐Spatial Engineered Response to Mimic Color Perception
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DOI：
10.1002/adom.202200734
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发表时间：
2022-04
影响因子：
9
通讯作者：
Christopher Munley;Wen-Hai Ma;Johannes E. Fröch;Quentin A. A. Tanguy-Quentin-A.-A.-Tanguy-15704552;E. Bayati;K. Böhringer;Zin Lin;R. Pestourie;Steven G. Johnson;A. Majumdar
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文献类型：
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作者：
Christopher Munley;Wen-Hai Ma;Johannes E. Fröch;Quentin A. A. Tanguy-Quentin-A.-A.-Tanguy-15704552;E. Bayati;K. Böhringer;Zin Lin;R. Pestourie;Steven G. Johnson;A. Majumdar
Meta‐optics已经迅速成为光学和光子学领域的一个主要研究领域，这是由通过与亚波长散射体阵列的相互作用来控制光波前所带来的看似无限的机会所推动的。随着越来越多的模式被探索，实现所需功能的设计策略变得越来越苛刻，需要更先进的设计技术。在本文中，利用逆向设计方法来创建一组单层Meta光学器件，其同时聚焦光并使聚焦光的光谱成形，而不使用任何滤波器。因此，优化了Meta光学的空间和光谱特性，从而产生模拟CIE 1931 XYZ颜色空间的颜色匹配函数的光谱，其将光源的光谱分布与人眼的颜色感知联系起来。这些Meta光学的实验演示与理论预测定性一致，并有助于阐明这些设备的聚焦机制。
Meta‐optics have rapidly become a major research field within the optics and photonics community, strongly driven by the seemingly limitless opportunities made possible by controlling optical wavefronts through interaction with arrays of sub‐wavelength scatterers. As more and more modalities are explored, the design strategies to achieve desired functionalities become increasingly demanding, necessitating more advanced design techniques. Herein, the inverse design approach is utilized to create a set of single‐layer meta‐optics that simultaneously focus light and shape the spectra of focused light without using any filters. Thus, both spatial and spectral properties of the meta‐optics are optimized, resulting in spectra that mimic the color matching functions of the CIE 1931 XYZ color space, which links the spectral distribution of a light source to the color perception of a human eye. Experimental demonstrations of these meta‐optics show qualitative agreement with the theoretical predictions and help elucidate the focusing mechanism of these devices.