On-chip metalenses based on one-dimensional gradient trench in the broadband visible

Metasurfaces are composed of flat, ultrathin subwavelength nanoantennas with strong capability in manipulating light propagation by modulations on its phase, amplitude, and polarization. For instance, the invention of two-dimensional (2D) metalenses has enabled light focusing and imaging in three-di...

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Veröffentlicht in:	Optics letters 2020-10, Vol.45 (20), p.5640-5643
Hauptverfasser:	Yang, Rui, Shi, Yangyang, Dai, Chenjie, Wan, Chengwei, Wan, Shuai, Li, Zhongyang
Format:	Artikel
Sprache:	eng
Schlagworte:	Broadband Depth of field Focal plane Focusing Light Numerical aperture Optical communication Polarization Signal generation Signal processing Wave propagation Waveguides
Online-Zugang:	Volltext
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