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나노 구조 물리 연구단
나노구조물리 연구단
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Reconfigurable exciton-plasmon interconversion for nanophotonic circuits

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Title
Reconfigurable exciton-plasmon interconversion for nanophotonic circuits
Author(s)
Hyun Seok Lee; Dinh Hoa Luong; Min Su Kim; Youngjo Jin; Hyun Kim; Seok Joon Yun; Young Hee Lee
Publication Date
2016-11
Journal
NATURE COMMUNICATIONS, v.7, no., pp.13663 -
Publisher
NATURE PUBLISHING GROUP
Abstract
The recent challenges for improving the operation speed of nanoelectronics have motivated research on manipulating light in on-chip integrated circuits. Hybrid plasmonic waveguides with low-dimensional semiconductors, including quantum dots and quantum wells, are a promising platform for realizing sub-diffraction limited optical components. Meanwhile, two-dimensional transition metal dichalcogenides (TMDs) have received broad interest in optoelectronics owing to tightly bound excitons at room temperature, strong light-matter and exciton-plasmon interactions, available top-down wafer-scale integration, and band-gap tunability. Here, we demonstrate principal functionalities for on-chip optical communications via reconfigurable exciton-plasmon interconversions in μ200-nm-diameter Ag-nanowires overlapping onto TMD transistors. By varying device configurations for each operation purpose, three active components for optical communications are realized: field-effect exciton transistors with a channel length of μ32 μm, field-effect exciton multiplexers transmitting multiple signals through a single NW and electrical detectors of propagating plasmons with a high On/Off ratio ofμ190. Our results illustrate the unique merits of two-dimensional semiconductors for constructing reconfigurable device architectures in integrated nanophotonic circuits. © The Author(s) 2016
URI
http://pr.ibs.re.kr/handle/8788114/3230
DOI
10.1038/ncomms13663
ISSN
2041-1723
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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