Achieving simultaneous broadband achromatic focusing and a wide field of view remains a significant challenge for metalenses. In this work, we begin with a quadratic phase profile, enabling full field ...
Distinguishing the frequency components of elastic waves is essential for ensuring the stability of mechanical systems. Herein, a frequency-multiplexed elastic metasurface is introduced, utilizing a ...
The achromatic lens can focus the incident RCP and LCP light onto two distinct positions without chromatic aberration over a wide bandwidth. Broadband achromatic wavefront control, a cornerstone of ...
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