A broadband achromatic polarization-insensitive metalens consisting of anisotropic nanostructures
Harvard University · Harvard University Press · +1 more institution
Abstract
Abstract Metasurfaces have attracted widespread attention due to an increasing demand of compact and wearable optical devices. For many applications, polarization-insensitive metasurfaces are highly desirable, and appear to limit the choice of their constituent elements to isotropic nanostructures. This greatly restricts the number of geometric parameters available in design. Here, we demonstrate a polarization-insensitive metalens using otherwise anisotropic nanofins which offer additional control over the dispersion and phase of the output light. As a result, we can render a metalens achromatic and polarization-insensitive across nearly the entire visible spectrum from wavelength λ = 460 nm to 700 nm, while…
Citation impact
- FWCI
- 18.75
- Percentile
- 100%
- References
- 58
Authors
5Topics & keywords
- Achromatic lens
- Polarization (electrochemistry)
- Broadband
- Optics
- Anisotropy
- Holography
- Materials science
- Optoelectronics
Funding
- NSNational Science FoundationAward: 1541959
- DADefense Advanced Research Projects AgencyAwards: 1541959, HR00111810001
- ARAdvanced Research Projects Agency
- MUMultidisciplinary University Research InitiativeAwards: FA9550-16-1-0156, FA9550-14-1-0389
- AFAir Force Office of Scientific ResearchAwards: FA9550-, FA9550-16, 1541959, -16-1-, FA9550-16-1, FA9550-14-1-0389, FA9550-16-1-0156, FA9550