ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2021
Electrically Tunable Bifocal Metalens with Diffraction-Limited Focusing and Imaging at Visible Wavelengths.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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The trial behind it
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Who cites it
45 citing papers in PubMed, 199 citations in OpenAlex.
- Electrically switchable dual-focus metalens for depth-extended in vivo photoacoustic imaging of ophthalmic vascular disease.Light, science & applications · 2026Article
- Multi-Channel Electrically Tunable Varifocal Metalens With Compact Multilayer Polarization-Dependent Metasurfaces and Liquid Crystals.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- A decoupled phase engineering strategy for Si-GSST active metasurfaces.Scientific reports · 2026Article
- Multifunctional movable-type coding metasurface enabling reconfigurable diffractive neural networks.Light, science & applications · 2026Article
- Varifocal Meta-Lens for Multifunctional Focusing and Imaging.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Metasurface-based Fourier ptychographic microscopy.Nanophotonics (Berlin, Germany) · 2025Article
- Review for optical metalens based on metasurfaces: fabrication and applications.Microsystems & nanoengineering · 2025Review
- Image scanning microscopy based on multifocal metalens for sub-diffraction-limited imaging of brain organoids.Light, science & applications · 2025Article
- Mechanically robust and self-cleanable encapsulated metalens via spin-on-glass packaging.Microsystems & nanoengineering · 2025Article
- Stimulator-multiplexing framework of microwave-infrared compatible reconfigurable metasurface integrated with LED array.Nanophotonics (Berlin, Germany) · 2025Article
- Axially multifocal metalens for 3D volumetric photoacoustic imaging of neuromelanin in live brain organoid.Science advances · 2025Article
- Fluid-Infiltrated Metalens-Driven Reconfigurable Intelligent Surfaces for Optical Wireless Communications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Electrically switchable 2Nature communications · 2024Article
- Electrically tunable planar liquid-crystal singlets for simultaneous spectrometry and imaging.Light, science & applications · 2024Article
- Multifaceted control of focal points along an arbitrary 3D curved trajectory.Light, science & applications · 2024Article
- Flat lens-based subwavelength focusing and scanning enabled by Fourier translation.Nanophotonics (Berlin, Germany) · 2024Article
- Functionality Expansion of Guided Mode Radiation via On-Chip Metasurfaces.Nano letters · 2024Article
- Optical vectorial-mode parity Hall effect: a case study with cylindrical vector beams.Nature communications · 2024Article
- Ultra-thin, zoom capable, flexible metalenses with high focusing efficiency and large numerical aperture.Nanophotonics (Berlin, Germany) · 2024Article
- Dual-wavelength metalens enables Epi-fluorescence detection from single molecules.Nature communications · 2024Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Tunable optical devices powered by metasurfaces provide a new path for functional planar optics. In particular, lenses with tunable focal lengths can play a key role in various fields with applications in imaging, displays, and augmented and virtual reality devices. Here, the authors demonstrate an electrically controllable bifocal metalens at visible wavelengths by incorporating a metasurface designed to focus light at two different focal lengths, with liquid crystals to actively manipulate the focal length of the metalens through the application of an external bias. By utilizing hydrogenated amorphous silicon that is optimized to provide an extremely low extinction coefficient in the visible regime, the metalens is highly efficient with measured focusing efficiencies of around 44%. They numerically design and experimentally realize and characterize tunable focusing and demonstrate electrically tunable active imaging at visible wavelengths using the bifocal metalens combined with liquid crystals. Diffraction limited focusing and imaging is verified through the analysis of the measured optical intensities at the focal points and the modulation transfer function. The bifocal metalens is used to demonstrate electrically modulated focus switching between the two designed focal planes, to display images of positive and negative target objects.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.