On-Demand Positioning of Various Active Nanoparticles in Plasmonic Antennae Structures will be Discussed and Complemented by Thorough Numerical Modelling

Niko Nikolay Department of Physics, Humboldt University, Berlin, Germany Oliver Benson Department of Physics, Humboldt University, Berlin, Germany

The concentration of the electromagnetic field in plasmonic antennae allows for significant improvement of nanophotonic devices. The Purcell effect increases the emission rate of single photon sources [1], and the large field enhancement supports non-linear effects such as frequency up-conversion [2]. The advantage of plasmonic compared to resonant dielectric structures is a smaller size and larger bandwidth. Furthermore, the electrical conductivity of plasmonic materials automatically provides electrodes or electric wires, which are essential parts of almost any integrated electro-optic device.

Nanoemitters like molecules [3], quantum dots [4] or defect centers in diamond [1] have been used as active material at the fundamental limit of active plasmonic antennae.

In this contribution we will introduce our approach of local functionalization of an antenna using atomic force microscope (AFM) manipulation [5]. On-demand positioning of various nanoparticles, such as single nanodiamonds, colloidal quantum dots, organic molecules and rare-earth-doped particles will be discussed. The experimental results will be complemented by full numerical calculations.

[1] Schietinger, S., Barth, M., Aichele, T., & Benson, O. (2009). Plasmon-enhanced single photon emission from a nanoassembled metal− diamond hybrid structure at room temperature. Nano letters, 9(4), 1694-1698.

[2] Schietinger, S., Aichele, T., Wang, H. Q., Nann, T., & Benson, O. (2009). Plasmon-enhanced upconversion in single NaYF4: Yb3+/Er3+ codoped nanocrystals. Nano letters, 10(1), 134-138.

[3] Kinkhabwala, A., Yu, Z., Fan, S., Avlasevich, Y., Müllen, K., & Moerner, W. E. (2009). Large single-molecule fluorescence enhancements produced by a bowtie nanoantenna. Nature Photonics, 3(11), 654-657.

[4] Harats, M. G., Livneh, N., Zaiats, G., Yochelis, S., Paltiel, Y., Lifshitz, E., & Rapaport, R. (2014). Full spectral and angular characterization of highly directional emission from nanocrystal quantum dots positioned on circular plasmonic lenses. Nano letters, 14(10), 5766-5771.

[5] Schell, A. W., Kewes, G., Schröder, T., Wolters, J., Aichele, T., & Benson, O. (2011). A scanning probe-based pick-and-place procedure for assembly of integrated quantum optical hybrid devices. Review of Scientific Instruments, 82(7), 073709.

nikolay@physik.hu-berlin.de









Powered by Eventact EMS