TY - JOUR
T1 - Non-local metasurfaces for spectrally decoupled wavefront manipulation and eye tracking
AU - Song, Jung Hwan
AU - van de Groep, Jorik
AU - Kim, Soo Jin
AU - Brongersma, Mark L.
N1 - Funding Information:
We gratefully acknowledge useful discussions with P. St. Hilaire and D. Lin. This work was supported by the US Air Force (grant no. FA9550-17-1-0331) and funding from Magic Leap. Part of this work was performed at the Nano@Stanford labs, supported by the National Science Foundation under award ECCS-1542152. J.-H.S. is supported by Basic Science Research Programme through the National Research Foundation of Korea (grant no. NRF-2016R1A6A3A03012480). J.v.d.G. is supported by a Rubicon Fellowship from the Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO).
Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature Limited.
PY - 2021/11
Y1 - 2021/11
N2 - Metasurface-based optical elements typically manipulate light waves by imparting space-variant changes in the amplitude and phase with a dense array of scattering nanostructures. The highly localized and low optical-quality-factor (Q) modes of nanostructures are beneficial for wavefront shaping as they afford quasi-local control over the electromagnetic fields. However, many emerging imaging, sensing, communication, display and nonlinear optics applications instead require flat, high-Q optical elements that provide substantial energy storage and a much higher degree of spectral control over the wavefront. Here, we demonstrate high-Q, non-local metasurfaces with atomically thin metasurface elements that offer notably enhanced light–matter interaction and fully decoupled optical functions at different wavelengths. We illustrate a possible use of such a flat optic in eye tracking for eyewear. Here, a metasurface patterned on a regular pair of eye glasses provides an unperturbed view of the world across the visible spectrum and redirects near-infrared light to a camera to allow imaging of the eye.
AB - Metasurface-based optical elements typically manipulate light waves by imparting space-variant changes in the amplitude and phase with a dense array of scattering nanostructures. The highly localized and low optical-quality-factor (Q) modes of nanostructures are beneficial for wavefront shaping as they afford quasi-local control over the electromagnetic fields. However, many emerging imaging, sensing, communication, display and nonlinear optics applications instead require flat, high-Q optical elements that provide substantial energy storage and a much higher degree of spectral control over the wavefront. Here, we demonstrate high-Q, non-local metasurfaces with atomically thin metasurface elements that offer notably enhanced light–matter interaction and fully decoupled optical functions at different wavelengths. We illustrate a possible use of such a flat optic in eye tracking for eyewear. Here, a metasurface patterned on a regular pair of eye glasses provides an unperturbed view of the world across the visible spectrum and redirects near-infrared light to a camera to allow imaging of the eye.
UR - http://www.scopus.com/inward/record.url?scp=85116354134&partnerID=8YFLogxK
U2 - 10.1038/s41565-021-00967-4
DO - 10.1038/s41565-021-00967-4
M3 - Article
C2 - 34594006
AN - SCOPUS:85116354134
SN - 1748-3387
VL - 16
SP - 1224
EP - 1230
JO - Nature Nanotechnology
JF - Nature Nanotechnology
IS - 11
ER -