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MEMS-tunable dielectric metasurface lens

Journal Article · · Nature Communications
Varifocal lenses, conventionally implemented by changing the axial distance between multiple optical elements, have a wide range of applications in imaging and optical beam scanning. The use of conventional bulky refractive elements makes these varifocal lenses large, slow, and limits their tunability. Metasurfaces, a new category of lithographically defined diffractive devices, enable thin and lightweight optical elements with precisely engineered phase profiles. Here we demonstrate tunable metasurface doublets, based on microelectromechanical systems (MEMS), with more than 60 diopters (about 4%) change in the optical power upon a 1-μm movement of one metasurface, and a scanning frequency that can potentially reach a few kHz. They can also be integrated with a third metasurface to make compact microscopes (~1 mm thick) with a large corrected field of view (~500 μm or 40 degrees) and fast axial scanning for 3D imaging. This paves the way towards MEMS-integrated metasurfaces as a platform for tunable and reconfigurable optics.
Research Organization:
Energy Frontier Research Centers (EFRC), Washington, D.C. (United States). Light-Material Interactions in Energy Conversion (LMI); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0001293
OSTI ID:
1470397
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 9; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Fano‐Enhanced Circular Dichroism in Deformable Stereo Metasurfaces journal January 2020
Metalenses: Advances and Applications journal July 2018
Empowered Layer Effects and Prominent Properties in Few‐Layer Metasurfaces journal March 2019
A Zero‐Rank, Maximum Nullity Perfect Electromagnetic Wave Absorber journal January 2019
Optical Metasurfaces: Evolving from Passive to Adaptive journal April 2019
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A Dynamically Modulated All‐Dielectric Metasurface Doublet for Directional Harmonic Generation and Manipulation in Transmission journal September 2019
Control of LED Emission with Functional Dielectric Metasurfaces journal November 2019
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A broadband achromatic polarization-insensitive metalens consisting of anisotropic nanostructures journal January 2019
Single-shot quantitative phase gradient microscopy using a system of multifunctional metasurfaces journal October 2019
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Metasurfaces-based imaging and applications: from miniaturized optical components to functional imaging platforms journal January 2020
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Invited Article: Nano-kirigami metasurfaces by focused-ion-beam induced close-loop transformation journal October 2018
Polarization states synthesizer based on a thermo-optic dielectric metasurface journal August 2019
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Optimized chemical potential graphene-based coding metasurface approach for dynamic manipulation of terahertz wavefront journal December 2019
Metasurface-enhanced optical lever sensitivity for atomic force microscopy journal June 2019
Rotationally tunable polarization-insensitive single and multifocal metasurface journal March 2019
Tunable beam deflector by mutual motion of cascaded bilayer metasurfaces journal October 2019
Polarization-enabled tunable focusing by visible-light metalenses with geometric and propagation phase journal October 2019
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Smart Table Based on a Metasurface for Wireless Power Transfer journal May 2019
Integrating Microsystems with Metamaterials Towards Metadevices conference June 2019
Spatiotemporal light control with active metasurfaces journal May 2019
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Fabrication and characterization of a binary diffractive lens for controlling focal distribution journal January 2020
When metasurface meets hologram: principle and advances journal January 2019
Active metamaterial nearly perfect light absorbers: a review [Invited] journal January 2019
Demonstration of color display metasurfaces via immersion lithography on a 12-inch silicon wafer journal January 2018
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Figures / Tables (5)