Reconfigurable Parfocal Zoom Metalens
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 14, 2022
- Source ID
- 10.1002/adom.202200721
Entities
People
- Anu Agarwal
- Clara Rivero‐Baleine
- Fan Yang
- Hualiang Zhang
- Hung‐i Lin
- Katherine Stoll
- Kathleen Richardson
- Mikhail Y Shalaginov
- Myungkoo Kang
- Sensong An
- Tian Gu
Organizations
- Defense Advanced Research Projects Agency
- Lockheed Martin
- Massachusetts Institute of Technology
- University of Central Florida
- University of Massachusetts Lowell