Lininger, Andrew Zhu, Alexander Y. Park, Joon-Suh Palermo, Giovanna Chatterjee, Sharmistha Boyd, Jonathan Capasso, Federico Strangi, Giuseppe 2024-01-19T17:00:47Z 2024-01-19T17:00:47Z 2021-09-02 2020-08-25 0027-8424 https://pubs.kist.re.kr/handle/201004/118242 Optical metasurfaces allow the ability to precisely manipulate the wavefront of light, creating many interesting and exotic optical phenomena. However, they generally lack dynamic control over their optical properties and are limited to passive optical elements. In this work, we report the nontrivial infiltration of nanostructured metalenses with three respective nematic liquid crystals of different refractive index and birefringence. The optical properties of the metalens are evaluated after liquid-crystal infiltration to quantify its effect on the intended optical design. We observe a significant modification of the metalens focus after infiltration for each liquid crystal. These optical changes result from modification of local refractive index surrounding the metalens structure after infiltration. We report qualitative agreement of the optical experiments with finite-difference time-domain solver (FDTD) simulation results. By harnessing the tunability inherent in the orientation dependent refractive index of the infiltrated liquid crystal, the metalens system considered here has the potential to enable dynamic reconfigurability in metasurfaces. English NATL ACAD SCIENCES FLAT OPTICS PHASE WATER RESOLUTION Optical properties of metasurfaces infiltrated with liquid crystals Article 10.1073/pnas.2006336117 1 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, v.117, no.34, pp.20390 - 20396 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117 34 20390 20396 scie scopus 000572349000014 2-s2.0-85090075772 Multidisciplinary Sciences Science & Technology - Other Topics Article FLAT OPTICS PHASE WATER RESOLUTION optical metasurfaces liquid crystal reconfigurable metasurface