TY - GEN
T1 - Exploiting Topological Properties of Mie-Resonance-Based Hybrid Metasurfaces for Ultrafast Switching of Light Polarization
AU - Wu, Yuhao
AU - Kang, Lei
AU - Campbell, Sawyer D.
AU - Werner, Pingjuan L.
AU - Werner, Douglas H.
N1 - Funding Information:
This work was supported in part by the Penn State MRSEC, Center for Nanoscale Science, under Award No. NSF DMR-1420620 and by the Defense Advanced Research Projects Agency (DARPA) (HR00111720032).
Publisher Copyright:
© 2021 URSI.
PY - 2021/8/28
Y1 - 2021/8/28
N2 - Mie resonances of high-index dielectric matesurfaces provide large freedom for light modulation with low loss, which, by including a highly reflective backplane, induce an enhanced optical magnetism with increasing quality factor. In this paper, we show that Mie-resonance-based α-Si:H metasurfaces with a gold backplane can be utilized to manipulate light polarization upon reflection. The nontrivial topological properties associated with the scattering field are revealed by reflection matrix analysis. Topologically protected polarization conversion is demonstrated by varying the incident wavevector. Furthermore, the nonlinear modeling shows that such hybrid metasurfaces can realize ultrafast all-optical polarization switching of near-infrared light. The topological nature of the metasurface's response offers great flexibility in polarization generation and dynamic modulation.
AB - Mie resonances of high-index dielectric matesurfaces provide large freedom for light modulation with low loss, which, by including a highly reflective backplane, induce an enhanced optical magnetism with increasing quality factor. In this paper, we show that Mie-resonance-based α-Si:H metasurfaces with a gold backplane can be utilized to manipulate light polarization upon reflection. The nontrivial topological properties associated with the scattering field are revealed by reflection matrix analysis. Topologically protected polarization conversion is demonstrated by varying the incident wavevector. Furthermore, the nonlinear modeling shows that such hybrid metasurfaces can realize ultrafast all-optical polarization switching of near-infrared light. The topological nature of the metasurface's response offers great flexibility in polarization generation and dynamic modulation.
UR - http://www.scopus.com/inward/record.url?scp=85118241454&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85118241454&partnerID=8YFLogxK
U2 - 10.23919/URSIGASS51995.2021.9560318
DO - 10.23919/URSIGASS51995.2021.9560318
M3 - Conference contribution
AN - SCOPUS:85118241454
T3 - 2021 34th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2021
BT - 2021 34th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 34th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2021
Y2 - 28 August 2021 through 4 September 2021
ER -