Ultrafast Optical Modulation of Second- and Third-Harmonic Generation from Cut-Disk-Based Metasurfaces

Journal Article · Wed Aug 17 00:00:00 EDT 2016 · ACS Photonics

DOI:https://doi.org/10.1021/acsphotonics.6b00108· OSTI ID:1390907

Sartorello, Giovanni; Olivier, Nicolas; Zhang, Jingjing; Yue, Weisheng; Gosztola, David J.; Wiederrecht, Gary P.; Wurtz, Grégory; Zayats, Anatoly V.

We design and fabricate a metasurface composed of gold cut-disk resonators that exhibits a strong coherent nonlinear response. We experimentally demonstrate all-optical modulation of both second- and third-harmonic signals on a subpicosecond time scale. Pump probe experiments and numerical models show that the observed effects are due to the ultrafast response of the electronic excitations in the metal under external illumination. These effects pave the way for the development of novel active nonlinear metasurfaces with controllable and switchable coherent nonlinear response.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division; Engineering and Physical Sciences Research Council (EPSRC)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1390907
• Journal Information: ACS Photonics, Vol. 3, Issue 8; ISSN 2330-4022
• Publisher: American Chemical Society (ACS)
• Country of Publication: United States
• Language: English

Related Subjects

metasurfaces
nanophotonics
nonlinear optics
plasmonics
ultrafast optics