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Opt Express. 2009 Jun 22;17(13):10542-63.

Efficient spectroscopy of single embedded emitters using optical fiber taper waveguides.

Author information

  • 1Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD, 20899-6203, USA. mdavanco@nist.gov


A technique based on using optical fiber taper waveguides for probing single emitters embedded in thin dielectric membranes is assessed through numerical simulations. For an appropriate membrane geometry, photoluminescence collection efficiencies in excess of 10% are predicted, exceeding the efficiency of standard free-space collection by an order of magnitude. Our results indicate that these fiber taper waveguides offer excellent prospects for performing efficient spectroscopy of single emitters embedded in thin films, such as a single self-assembled quantum dot in a semiconductor membrane.

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