Strongly Extended Superradiance in Optical Dirac Cone Metamaterials

ORAL

Abstract

Zero index metamaterials (ZIM) experience near-perfect spatial coherence and infinite spatial wavelength.[1] We design and simulate a diamond metamaterial with zero refractive index at 737 nm. This occurs due to a Dirac cone within the dispersion of our metamaterial. With this property we analytically and numerically demonstrate the hallmarks of superradiance: an N2 scaling of enhancement of power within our structure over a spatial extent much greater than a wavelength, where N is the number of emitters, as well as cooperative decay rate enhancement relative to the single emitter decay rate. Additionally, we demonstrate preliminary fabrication results with the intention to experimentally implement this concept using silicon vacancy centers (SiV) in diamond.
[1]Y. Li, S. Kita, P. Muoz, O. Reshef, D. Vulis, M. Yin, et al., ”On-chip zero-index metamaterials,” Nat. Photon. 9, pp. 738-742, (2015).

*This work was performed in part at the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the National Science Foundation under NSF award no. 1541959 and DARPA under the award ARO W911NF-18-0369. CNS is part of Harvard University.

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Presenters

  • Olivia Mello

    • Harvard University

Authors

  • Olivia Mello

    • Harvard University

  • Yang Li

    • Tsingua University

  • Philip Camayd-Munoz

    • Physics, California Institute of Technology

  • Linbo Shao

    • Harvard University

  • Cleaven Chia

    • Harvard University

  • Eric Mazur

    • Harvard University
    • SEAS, Harvard University

  • Marko Loncar

    • Harvard University