Reconfigurable Parfocal Zoom Metalens
Source abstract
Abstract
Abstract Zoom lenses with variable focal lengths and magnification ratios are essential for many optical imaging applications. Conventional zoom lenses are composed of multiple refractive optics, and optical zoom is attained via translational motion of one or more lens elements, which adds to module size, complexity, and cost. In this paper, a zoom lens design based on multi‐functional optical metasurfaces is presented, which achieves large step zoom ratios, minimal distortion, and diffraction‐limited optical quality without requiring mechanical moving parts. Two embodiments of the concept are experimentally demonstrated based on polarization‐multiplexing in the visible and phase change materials in the mid‐infrared, both yielding 10× parfocal zoom in accordance with the design.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Metamaterials and Metasurfaces Applications · Advanced Antenna and Metasurface Technologies · Advanced Materials and Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
Missiles and Fire Control Lockheed Martin Corporation Orlando FL 32819 USA
The College of Optics and Photonics, Department of Materials Science and Engineering University of Central Florida Orlando FL 32816 USA
Materials Research Laboratory Massachusetts Institute of Technology Cambridge MA 02139 USA
Department of Electrical and Computer Engineering University of Massachusetts Lowell Lowell MA 01854 USA
Funding
Defense Advanced Research Projects Agency · Massachusetts Institute of Technology
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