Integrated amorphous silicon-aluminum long-range surface plasmon polariton (LR-SPP) waveguides

We demonstrate the design, fabrication, and experimental characterization of a long range surface plasmon polariton waveguide that is compatible with complementary metal-oxide semiconductor backend technology. The structure consists of a thin aluminum strip embedded in amorphous silicon. This config...

Full description

Bibliographic Details
Main Authors: Boaz Sturlesi, Meir Grajower, Noa Mazurski, Uriel Levy
Format: Article
Language:English
Published: AIP Publishing LLC 2018-03-01
Series:APL Photonics
Online Access:http://dx.doi.org/10.1063/1.5013662
_version_ 1818267473480253440
author Boaz Sturlesi
Meir Grajower
Noa Mazurski
Uriel Levy
author_facet Boaz Sturlesi
Meir Grajower
Noa Mazurski
Uriel Levy
author_sort Boaz Sturlesi
collection DOAJ
description We demonstrate the design, fabrication, and experimental characterization of a long range surface plasmon polariton waveguide that is compatible with complementary metal-oxide semiconductor backend technology. The structure consists of a thin aluminum strip embedded in amorphous silicon. This configuration offers a symmetric environment in which surface plasmon polariton modes undergo minimal loss. Furthermore, the plasmonic mode profile matches the modes of the dielectric (amorphous silicon) waveguide, thus allowing efficient coupling between silicon photonics and plasmonic platforms. The propagation length of the plasmonic waveguide was measured to be about 27 μm at the telecom wavelength around 1550 nm, in good agreement with numerical simulations. As such, the waveguide features both tight mode confinement and decent propagation length. On top of its photonic properties, placing a metal within the structure may also allow for additional functionalities such as photo-detection, thermo-optic tuning, and electro-optic control to be implemented.
first_indexed 2024-12-12T20:23:09Z
format Article
id doaj.art-b7af13457ca743019a55e3f6e764ceb3
institution Directory Open Access Journal
issn 2378-0967
language English
last_indexed 2024-12-12T20:23:09Z
publishDate 2018-03-01
publisher AIP Publishing LLC
record_format Article
series APL Photonics
spelling doaj.art-b7af13457ca743019a55e3f6e764ceb32022-12-22T00:13:12ZengAIP Publishing LLCAPL Photonics2378-09672018-03-0133036103036103-910.1063/1.5013662003803APPIntegrated amorphous silicon-aluminum long-range surface plasmon polariton (LR-SPP) waveguidesBoaz Sturlesi0Meir Grajower1Noa Mazurski2Uriel Levy3Department of Applied Physics, The Benin School of Engineering and Computer Science, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelDepartment of Applied Physics, The Benin School of Engineering and Computer Science, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelDepartment of Applied Physics, The Benin School of Engineering and Computer Science, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelDepartment of Applied Physics, The Benin School of Engineering and Computer Science, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelWe demonstrate the design, fabrication, and experimental characterization of a long range surface plasmon polariton waveguide that is compatible with complementary metal-oxide semiconductor backend technology. The structure consists of a thin aluminum strip embedded in amorphous silicon. This configuration offers a symmetric environment in which surface plasmon polariton modes undergo minimal loss. Furthermore, the plasmonic mode profile matches the modes of the dielectric (amorphous silicon) waveguide, thus allowing efficient coupling between silicon photonics and plasmonic platforms. The propagation length of the plasmonic waveguide was measured to be about 27 μm at the telecom wavelength around 1550 nm, in good agreement with numerical simulations. As such, the waveguide features both tight mode confinement and decent propagation length. On top of its photonic properties, placing a metal within the structure may also allow for additional functionalities such as photo-detection, thermo-optic tuning, and electro-optic control to be implemented.http://dx.doi.org/10.1063/1.5013662
spellingShingle Boaz Sturlesi
Meir Grajower
Noa Mazurski
Uriel Levy
Integrated amorphous silicon-aluminum long-range surface plasmon polariton (LR-SPP) waveguides
APL Photonics
title Integrated amorphous silicon-aluminum long-range surface plasmon polariton (LR-SPP) waveguides
title_full Integrated amorphous silicon-aluminum long-range surface plasmon polariton (LR-SPP) waveguides
title_fullStr Integrated amorphous silicon-aluminum long-range surface plasmon polariton (LR-SPP) waveguides
title_full_unstemmed Integrated amorphous silicon-aluminum long-range surface plasmon polariton (LR-SPP) waveguides
title_short Integrated amorphous silicon-aluminum long-range surface plasmon polariton (LR-SPP) waveguides
title_sort integrated amorphous silicon aluminum long range surface plasmon polariton lr spp waveguides
url http://dx.doi.org/10.1063/1.5013662
work_keys_str_mv AT boazsturlesi integratedamorphoussiliconaluminumlongrangesurfaceplasmonpolaritonlrsppwaveguides
AT meirgrajower integratedamorphoussiliconaluminumlongrangesurfaceplasmonpolaritonlrsppwaveguides
AT noamazurski integratedamorphoussiliconaluminumlongrangesurfaceplasmonpolaritonlrsppwaveguides
AT uriellevy integratedamorphoussiliconaluminumlongrangesurfaceplasmonpolaritonlrsppwaveguides