Efficient Experimental Design of a Long-Range Gapped Surface Plasmon Polariton Waveguide for Plasmonic Modulation Applications
We propose straight and tapered insulator-metal-insulator-type surface plasmon polariton (SPP) waveguides with a gap (G-SPPWs). The optical characteristics of the G-SPPWs are experimentally evaluated at a wavelength of 1.55 μm due to optical communication gateway. The parameters of the 20...
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doaj-42b0ae76435b4ad49c93e878466ff94d2021-03-29T17:53:32ZengIEEEIEEE Photonics Journal1943-06552019-01-0111111010.1109/JPHOT.2019.28950938625489Efficient Experimental Design of a Long-Range Gapped Surface Plasmon Polariton Waveguide for Plasmonic Modulation ApplicationsDong Hun Lee0https://orcid.org/0000-0002-2924-7168Myung-Hyun Lee1https://orcid.org/0000-0003-3414-3360School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon, South KoreaSchool of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon, South KoreaWe propose straight and tapered insulator-metal-insulator-type surface plasmon polariton (SPP) waveguides with a gap (G-SPPWs). The optical characteristics of the G-SPPWs are experimentally evaluated at a wavelength of 1.55 μm due to optical communication gateway. The parameters of the 20-nm-thick G-SPPWs were chosen based on our previous simulation results. The excited input SPPs propagate, jump over the gaps with low coupling losses, and propagate again, despite a 9-μm-long gap in the G-SPPWs. The coupling losses of the gap were experimentally determined to be less than 0.7 dB with various gap lengths up to 9 μm. The insertion losses of the straight G-SPPW with 8 μm × 2 μm (gap length × SPPW width) and the tapered G-SPPW with 8 μm × 2 μm (gap length × SPPW width) and a 6 μm × 3 μm (taper width × taper length) were determined to be ~1.03 and ~0.74 dB, respectively. The tapered structure increases the tunneling efficiency in the gap of the G-SPPW by reducing the insertion loss. In the 2.5-Gbps optical signal transmission experiment, the proposed G-SPPW exhibited excellent eye opening and transferred the carrier wave as well as the data signal. This device has potential as a new plasmonic modulation element offering control of a guided SPP through interaction with an applied force in the gap.https://ieeexplore.ieee.org/document/8625489/Surface plasmon polaritons (SPPs)PlasmonicsWaveguidesIntegrated optics devices |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Dong Hun Lee Myung-Hyun Lee |
spellingShingle |
Dong Hun Lee Myung-Hyun Lee Efficient Experimental Design of a Long-Range Gapped Surface Plasmon Polariton Waveguide for Plasmonic Modulation Applications IEEE Photonics Journal Surface plasmon polaritons (SPPs) Plasmonics Waveguides Integrated optics devices |
author_facet |
Dong Hun Lee Myung-Hyun Lee |
author_sort |
Dong Hun Lee |
title |
Efficient Experimental Design of a Long-Range Gapped Surface Plasmon Polariton Waveguide for Plasmonic Modulation Applications |
title_short |
Efficient Experimental Design of a Long-Range Gapped Surface Plasmon Polariton Waveguide for Plasmonic Modulation Applications |
title_full |
Efficient Experimental Design of a Long-Range Gapped Surface Plasmon Polariton Waveguide for Plasmonic Modulation Applications |
title_fullStr |
Efficient Experimental Design of a Long-Range Gapped Surface Plasmon Polariton Waveguide for Plasmonic Modulation Applications |
title_full_unstemmed |
Efficient Experimental Design of a Long-Range Gapped Surface Plasmon Polariton Waveguide for Plasmonic Modulation Applications |
title_sort |
efficient experimental design of a long-range gapped surface plasmon polariton waveguide for plasmonic modulation applications |
publisher |
IEEE |
series |
IEEE Photonics Journal |
issn |
1943-0655 |
publishDate |
2019-01-01 |
description |
We propose straight and tapered insulator-metal-insulator-type surface plasmon polariton (SPP) waveguides with a gap (G-SPPWs). The optical characteristics of the G-SPPWs are experimentally evaluated at a wavelength of 1.55 μm due to optical communication gateway. The parameters of the 20-nm-thick G-SPPWs were chosen based on our previous simulation results. The excited input SPPs propagate, jump over the gaps with low coupling losses, and propagate again, despite a 9-μm-long gap in the G-SPPWs. The coupling losses of the gap were experimentally determined to be less than 0.7 dB with various gap lengths up to 9 μm. The insertion losses of the straight G-SPPW with 8 μm × 2 μm (gap length × SPPW width) and the tapered G-SPPW with 8 μm × 2 μm (gap length × SPPW width) and a 6 μm × 3 μm (taper width × taper length) were determined to be ~1.03 and ~0.74 dB, respectively. The tapered structure increases the tunneling efficiency in the gap of the G-SPPW by reducing the insertion loss. In the 2.5-Gbps optical signal transmission experiment, the proposed G-SPPW exhibited excellent eye opening and transferred the carrier wave as well as the data signal. This device has potential as a new plasmonic modulation element offering control of a guided SPP through interaction with an applied force in the gap. |
topic |
Surface plasmon polaritons (SPPs) Plasmonics Waveguides Integrated optics devices |
url |
https://ieeexplore.ieee.org/document/8625489/ |
work_keys_str_mv |
AT donghunlee efficientexperimentaldesignofalongrangegappedsurfaceplasmonpolaritonwaveguideforplasmonicmodulationapplications AT myunghyunlee efficientexperimentaldesignofalongrangegappedsurfaceplasmonpolaritonwaveguideforplasmonicmodulationapplications |
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