A realistic fabrication and design concept for quantum gates based on single emitters integrated in plasmonic-dielectric waveguide structures

Year: 2016

Authors: Kewes G., Schoengen M., Neitzke O., Lombardi P., Schönfeld R.S., Mazzamuto G., Schell A.W., Probst J., Wolters J., Löchel B., Toninelli C., Benson O.

Autors Affiliation: Humboldt Univ, Inst Phys, AG Nanoopt, Newtonstr 15, D-12489 Berlin, Germany; Helmholtz Zentrum Berlin Mat & Energie, Albert Einstein Str 15, D-12489 Berlin, Germany; Univ Florence, European Lab Nonlinear Spect LENS, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy; Ist Nazl Ottica, Largo Fermi 6, I-50125 Florence, Italy; Kyoto Univ, Kyoto Daigaku Katsura, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan; Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland.

Abstract: Tremendous enhancement of light-matter interaction in plasmonic-dielectric hybrid devices allows for non-linearities at the level of single emitters and few photons, such as single photon transistors. However, constructing integrated components for such devices is technologically extremely challenging. We tackle this task by lithographically fabricating an on-chip plasmonic waveguide-structure connected to far-field in-and out-coupling ports via low-loss dielectric waveguides. We precisely describe our lithographic approach and characterize the fabricated integrated chip. We find excellent agreement with rigorous numerical simulations. Based on these findings we perform a numerical optimization and calculate concrete numbers for a plasmonic single-photon transistor.

Journal/Review: SCIENTIFIC REPORTS

Volume: 6      Pages from: 28877-1  to: 28877-10

More Information: Support by the German Research Foundation (DFG via SFB 951) is gratefully acknowledged. CT, PL and GM acknowledge support from the European Network of Excellence for Energy Efficiency, with the seed project OLEIT. Thanks to the JCMwave team for supporting simulations.
KeyWords: diamond nanocrystals; defect centers; optical-fibers; transistor; molecules; crystal: photon; modes
DOI: 10.1038/srep28877

Citations: 37
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