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Proceedings Paper

Metasurface-enabled quantum vacuum effects over macroscopic distances (Presentation Recording)
Author(s): Pankaj K. Jha; Xingjie Ni; Chihhui Wu; Yuan Wang; Xiang Zhang

Paper Abstract

Quantum vacuum engineering is an active field of research. Here we use recent advances in the field of metasurface (2D-array of sub-wavelength scale nano-antennas) to construct an anisotropic quantum vacuum (AQV) in the vicinity of a quantum emitter located at some macroscopic distance from the metasurface. Such AQV can induce quantum interference among several atomic transitions, even when the transition dipole moment corresponding to the decay channels are orthogonal. Recently, there have been few theoretical proposal to use metamaterials to engineer the back-action. All these approaches, which works in the near field (few tens of nanometers from the surface), suffers from trapping an atom at these distance, surface interactions like quenching, Casimir force etc. Hence it’s pivotal to construct the back-action over macroscopic distance. We harness the polarization dependent response of a metasurface to engineer the back-action of the spontaneous emission from the atom to itself. We show strong anisotropy in the decay rate of a quantum emitter which is a manifestation of AQV. Engineering light-matter interaction over macroscopic distances opens new possibilities for long-range interaction between quantum emitters for quantum information processing, spin-optics/spintronics etc.

Paper Details

Date Published: 5 October 2015
PDF: 1 pages
Proc. SPIE 9544, Metamaterials, Metadevices, and Metasystems 2015, 95442B (5 October 2015); doi: 10.1117/12.2187434
Show Author Affiliations
Pankaj K. Jha, Univ. of California, Berkeley (United States)
Xingjie Ni, Univ. of California, Berkeley (United States)
Chihhui Wu, Univ. of California, Berkeley (United States)
Yuan Wang, Univ. of California, Berkeley (United States)
Xiang Zhang, Univ. of California, Berkeley (United States)

Published in SPIE Proceedings Vol. 9544:
Metamaterials, Metadevices, and Metasystems 2015
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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