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High-efficiency active membrane metasurfaces
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DOI：10.1126/sciadv.adw4752.png)
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Abstract
En 中文
Efficient, low-power, and highly integrated optoelectronic devices remain a critical yet challenging goal. Here, we introduce a multipoint Kerker effect membrane metasurface that merges Kerker's condition with quasi-bound states in the continuum (q-BICs). By engineering dual-mode dispersion, we achieve a high-efficiency beam deflector, simultaneously realizing robust parameter tolerance and narrow-linewidth resonances-two typically conflicting properties. Our experiment demonstrates an absolute beam deflection efficiency exceeding 92%, with exceptional spectral and spatial selectivity, including a 4-gigahertz linewidth, a 2.8 degrees divergence angle, and a quality factor of 114. Moreover, it enables 94% transmission intensity modulation under an ultralow continuous wave pump intensity of 0.5 W/cm2. These results establish the Kerker effect framework as a scalable and energy-efficient photonic platform, offering a powerful route toward integrable optoelectronic systems for next-generation wireless communication and LiDAR.
Keywords:
COUPLED-MODE THEORY
LIGHT
Journal
IF:
12.5
Papers:
2.0W
Citations:
18.1W