ArticleLight, science & applications2018
All-optical dynamic focusing of light via coherent absorption in a plasmonic metasurface.
Article in Light, science & applications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Meter-depth and multi-polarization addressable zoom 3D meta-holography.Nature communications · 2026Article
- Wafer-Scale Near-Infrared Metalenses With High Performance and Low Cost.Nanophotonics (Berlin, Germany) · 2026Article
- Nonlocal metasurface for dark-field edge emission.Science advances · 2024Article
- Chip-scale atomic diffractive optical elements.Nature communications · 2019Article
- Metamaterial Lensing Devices.Molecules (Basel, Switzerland) · 2019Review
- Multichannel direct transmissions of near-field information.Light, science & applications · 2019Article
- An Improved Electronic Image Motion Compensation (IMC) Method of Aerial Full-Frame-Type Area Array CCD Camera Based on the CCD Multiphase Structure and Hardware Implementation.Sensors (Basel, Switzerland) · 2018Article
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
Vision, microscopy, imaging, optical data projection and storage all depend on focusing of light. Dynamic focusing is conventionally achieved with mechanically reconfigurable lenses, spatial light modulators or microfluidics. Here we demonstrate that dynamic control of focusing can be achieved through coherent interaction of optical waves on a thin beam splitter. We use a nanostructured plasmonic metasurface of subwavelength thickness as the beam splitter, allowing operation in the regimes of coherent absorption and coherent transparency. Focusing of light resulting from illumination of the plasmonic metasurface with a Fresnel zone pattern is controlled by another patterned beam projected on the same metasurface. By altering the control pattern, its phase, or its intensity, we switch the lens function on and off, and alter the focal spot's depth, diameter and intensity. Switching occurs as fast as the control beam is modulated and therefore tens of gigahertz modulation bandwidth is possible with electro-optical modulators, which is orders of magnitude faster than conventional dynamic focusing technologies.
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