Direction-tunable enhanced emission from a subwavelength metallic double-nanoslit structure Song, Xiaohong Wang, Nini Yan, Ming Lin, Cheng Förstner, Jens Yang, Weifeng tet_topic_plasmonics ddc:530 Controlling light emission out of subwavelength nanoslit/aperture structures is of great important for highly integrated photonic circuits. Here we propose a new method to achieve direction-tunable emission based on a compact metallic microcavity with double nanoslit. Our method combines the principles of Young’s interference and surface plasmon polaritons interference. We show that the direction of the far-field beam can be controlled over a wide range of angles by manipulating the frequency and relative phase of light arriving at the two slits, which holds promise for applications in the ultracompact optoelectronic devices. The Optical Society 2017 info:eu-repo/semantics/article doc-type:article text http://purl.org/coar/resource_type/c_6501 https://ris.uni-paderborn.de/record/3832 https://ris.uni-paderborn.de/download/3832/3833 Song X, Wang N, Yan M, Lin C, Förstner J, Yang W. Direction-tunable enhanced emission from a subwavelength metallic double-nanoslit structure. <i>Optics Express</i>. 2017;25(12):13207-13214. doi:<a href="https://doi.org/10.1364/oe.25.013207">10.1364/oe.25.013207</a> eng info:eu-repo/semantics/altIdentifier/doi/10.1364/oe.25.013207 info:eu-repo/semantics/altIdentifier/issn/1094-4087 info:eu-repo/semantics/openAccess