Nonlinear Dielectric Metasurfaces for Wavefront Control

Conference · Tue May 01 00:00:00 EDT 2018

DOI:https://doi.org/10.1364/CLEO_SI.2018.SM4D.6· OSTI ID:1440815

Wang, Lei ^[1]; Kruk, Sergei ^[1]; Koshelev, Kirill ^[1]; Kravchenko, Ivan I. ^[2]; Luther-Davies, Barry ^[1]; Kivshar, Yuri ^[1]

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1. Australian National University, Canberra
2. ORNL

We demonstrate Si-based metasurfaces for third-harmonic generation of an arbitrary wavefront. The nonlinear metasurfaces produce phase gradients within a full 0--2π phase range. We achieve 92% diffraction efficiency of the nonlinear wavefront control.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1440815
• Country of Publication: United States
• Language: English