@article{7ece178d53454e8f91a0365daf6f0e59,
title = "Distance-dependence of the coupling between split-ring resonators and single-quantum-well gain",
abstract = "We present low-temperature femtosecond pump-probe experiments on arrays of silver split-ring resonators coupled to single quantum wells, in which we vary the geometrical separation between the two components to study the variation of coupling with distance. Its strength is found to decrease exponentially with increasing separation with a 1/e length on the order of 8 nm. We further link our experimental results to numerical calculations of the near fields which show the same distance-dependence as the coupling strength in the experiment. Together, this confirms the assumption of a near-field-assisted coupling mechanism.",
author = "N. Meinzer and M. K{\"o}nig and M. Ruther and S. Linden and G. Khitrova and Gibbs, {H. M.} and K. Busch and M. Wegener",
note = "Funding Information: We acknowledge financial support through subprojects A 1.2 and A 1.5 of the DFG-Center for Functional Nanostructures (CFN). The project METAMAT is funded by the Bundesministerium f{\"u}r Bildung und Forschung (BMBF). Project PHOME acknowledges support by the European Commission under FET-Open Grant No. 213390. Also, the Ph.D. education of N.M., M.K., and M.R. is embedded in the Karlsruhe School of Optics & Photonics (KSOP). The research of M.K. is further supported by the Studienstiftung des Deutschen Volkes. The Tucson group receives support from AFOSR (FA9550-10-1-0003), NSF AMOP (PHY-0757707), and NSF ERC CIAN (EEC-08120272).",
year = "2011",
month = sep,
day = "12",
doi = "10.1063/1.3633353",
language = "English (US)",
volume = "99",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "11",
}