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Plasmonic antennas, positioning, and coupling of individual quantum systems

Title data

Dregely, Daniel ; Lindfors, Klas ; Dorfmüller, Jens ; Hentschel, Mario ; Becker, Merle ; Wrachtrup, Jörg ; Lippitz, Markus ; Vogelgesang, Ralf ; Giessen, Harald:
Plasmonic antennas, positioning, and coupling of individual quantum systems.
In: Physica Status Solidi B. Vol. 249 (April 2012) Issue 4 . - pp. 666-677.
ISSN 0370-1972
DOI: https://doi.org/10.1002/pssb.201100781

Abstract in another language

Plasmonic nanoantennas can enhance the radiative decay rate of quantum emitters via the Purcell-effect. Similar to their radiofrequency equivalents, they can also direct the emitted light into preferential directions. In this paper we first investigate plasmonic Yagi-Uda antennas that are able to confine light to and direct light from subwavelength size volumes. Hence, enhanced transition rates and directed emission are expected when near-field coupling between quantum emitters and the antennas is achieved. Second, we present suitable techniques to couple different quantum systems to plasmonic antennas. We use top-down fabrication techniques to achieve positioning of individual quantum emitters relative to plasmonic nanostructures with an accuracy better than 10?nm. We assure a sufficiently small distance for an efficient near-field coupling of the transition dipole to the plasmonic nanoantenna, which is, however, large enough not to quench the transition. The hybrid system using quantum dots, molecules, or nitrogen-vacancy (NV)-centers in diamond can serve as an efficient single photon source. It is suitable for high-speed information transfer at optical frequencies on the nanoscale for future applications.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik III - Nanooptik
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik III - Nanooptik > Lehrstuhl Experimentalphysik III - Nanooptik - Univ.-Prof. Dr. Markus Lippitz
Result of work at the UBT: No
DDC Subjects: 500 Science
500 Science > 500 Natural sciences
500 Science > 530 Physics
Date Deposited: 16 Dec 2015 07:59
Last Modified: 16 Dec 2015 07:59
URI: https://eref.uni-bayreuth.de/id/eprint/28951