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Switchable 2D–3D display through a metasurface lenticular lens

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Why This Matters

This research introduces a switchable 2D–3D display technology utilizing a metasurface lenticular lens, which could revolutionize display systems by enabling dynamic switching between 2D and 3D visuals. The development of efficient multi-layer lenses (MLLs) with measurable performance at various wavelengths paves the way for more versatile, high-quality displays in consumer electronics and professional applications. Such advancements could lead to more immersive viewing experiences and innovative display solutions in the tech industry.

Key Takeaways

a, Measurement setup for the efficiency of the MLL. Since the signal from the MLL diverges or converges depending on the input polarization state, direct measurement is challenging. Instead, we measure the intensity of the DC noise and acquire the signal intensity by subtracting it from the power of the incident light without the MLL. To create quasi-collimated light, only a few pixels are turned on, and the rays are collimated using a CCD lens. A LP and QWP modulate the incident light into the RCP state. Then, second QWP and LP block the signal after the light passes through the MLL. The efficiency of the MLL is measured for different incident angles. To minimize polarization aberrations, the two LPs and two QWPs are positioned perpendicular to the light’s propagation direction. The output DC component is measured using an illuminance meter (CA-210, Konica Minolta). b, Measured efficiency of the fabricated MLL. For normal incidence, the measured efficiencies are 26.6%, 46.4%, and 54.8% for 620 nm, 535 nm, and 460 nm, respectively.