On the detection of characteristic optical emission from electronically coupled nanoemitters

David S. Bradshaw; Jack S. Ford; David L. Andrews

doi:10.1117/12.2022006

13 September 2013 On the detection of characteristic optical emission from electronically coupled nanoemitters

David S. Bradshaw, Jack S. Ford, David L. Andrews

Proceedings Volume 8807, Nanophotonic Materials X; 880703 (2013) https://doi.org/10.1117/12.2022006
Event: SPIE NanoScience + Engineering, 2013, San Diego, California, United States

Abstract

Optical emission from an electronically coupled pair of nanoemitters is investigated, in a new theoretical development prompted by experimental work on oriented semiconductor polymer nanostructures. Three physically distinct mechanisms for photon emission by such a pair, positioned in the near-field, are identified: emission from a pairdelocalized exciton state, emission that engages electrodynamic coupling through quantum interference, and correlated photon emission from the two components of the pair. Each possibility is investigated, in detail, by examination of the emission signal via explicit coupling of the nanoemitter pair with a photodetector, enabling calculations to give predictive results in a form directly tailored for experiment. The analysis incorporates both near- and far-field properties (determined from the detector-pair displacement), so that the framework is applicable not only to a conventional remote detector, but also a near-field microscope setup. The results prove strongly dependent on geometry and selection rules. This work paves the way for a broader investigation of pairwise coupling effects in the optical emission from structured nanoemitter arrays.

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David S. Bradshaw, Jack S. Ford, and David L. Andrews "On the detection of characteristic optical emission from electronically coupled nanoemitters", Proc. SPIE 8807, Nanophotonic Materials X, 880703 (13 September 2013); https://doi.org/10.1117/12.2022006

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KEYWORDS

Sensors

Near field optics

Luminescence

Near field

Signal detection

Excitons

Neodymium

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