Laser-written parabolic micro-antennas for efficient photon collection

  • Author:

    A.W. Schell, T. Neumer, Q. Shi, J. Kaschke, J. Fischer, M. Wegener, and O. Benson
  • Source:

    Appl. Phys. Lett. 105, 231117 (2014)
  • Date: 10.12.2014

  • Abstract:

    Efficient collection of photons from solid-state single-photon emitters, like quantum dots, molecules, or defect centers in diamond, is a very demanding task. Here, we introduce parabolic micro-antennas fabricated by two-photon direct laser-writing to enhance the collection efficiency by directing emitted light into a small solid angle. The antennas can be fabricated on-site at the position of a pre-selected single-photon emitter.
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