Advanced Photonics, Volume. 3, Issue 1, 016001(2021)
Ultrawideband chromatic aberration-free meta-mirrors Article Video , EIC Choice Award
Fig. 1. Schematics and working principles of highly efficient and wideband chromatic aberration-free meta-mirrors. (a) Typical scattering patterns of narrow band meta-mirrors with high performance only at the frequency of
Fig. 2. Meta-atom design and EM response calculated by the TMM on the effective model and FDTD simulations on realistic structures. (a) Schematics of the proposed composite meta-atom composed of four metallic layers separated by three F4B spacers (
Fig. 3. Design and performance of the achromatic meta-mirror. (a) Theoretically calculated phase profiles at the target frequency band. The pictures on the (b) first layer, (c) second layer, and (d) third layer of the fabricated achromatic meta-mirror. (e) FDTD simulated and (f) measured scattered-field intensity (color map) versus frequency and detected angles at the reflection space of the meta-device shined by
Fig. 4. Electric field distributions of our meta-device under excitation of
Fig. 5. Design and performance of our abnormal chromatic meta-mirror. (a) Theoretical calculated reflection phase distributions of 16 meta-atoms against frequencies. (b) Pictures of the fabricated sample of meta-mirror. (c) Measured scattered-field intensity (color map) versus frequency and detecting angles at the reflection space of the metasurface shined by
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Tong Cai, Shiwei Tang, Bin Zheng, Guangming Wang, Wenye Ji, Chao Qian, Zuojia Wang, Erping Li, Hongsheng Chen, "Ultrawideband chromatic aberration-free meta-mirrors," Adv. Photon. 3, 016001 (2021)
Category: Research Articles
Received: May. 28, 2020
Accepted: Nov. 2, 2020
Published Online: Dec. 15, 2020
The Author Email: Zheng Bin (zhengbin@zju.edu.cn), Chen Hongsheng (hansomchen@zju.edu.cn)