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Title: Dynamic Tuning of Gap Plasmon Resonances Using a Solid-State Electrochromic Device

Abstract

Plasmonic antennas and metasurfaces can effectively control light–matter interactions, and this facilitates a deterministic design of optical materials properties, including structural color. However, these optical properties are generally fixed after synthesis and fabrication, while many modern-day optics applications require active, low-power, and nonvolatile tuning. These needs have spurred broad research activities aimed at identifying materials and resonant structures capable of achieving large, dynamic changes in optical properties, especially in the challenging visible spectral range. In this work, we demonstrate dynamic tuning of polarization-dependent gap plasmon resonators that contain the electrochromic oxide WO 3. Its refractive index in the visible changes continuously from n = 2.1 to 1.9 upon electrochemical lithium insertion and removal in a solid-state device. By incorporating WO 3 into a gap plasmon resonator, the resonant wavelength can be shifted continuously and reversibly by up to 58 nm with less than 2 V electrochemical bias voltage. Lastly, the resonator can remain in a tuned state for tens of minutes under open circuit conditions.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [2]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States); Stanford Univ., CA (United States). Dept. of Materials Science and Engineering
  2. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials
  3. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1570265
Report Number(s):
SAND-2019-11177J
Journal ID: ISSN 1530-6984; 679791
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Name: Nano Letters; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
Electrochromic; gap plasmon; dynamic tuning; optical properties; nanophotonics

Citation Formats

Li, Yiyang, van de Groep, Jorik, Talin, A. Alec, and Brongersma, Mark L. Dynamic Tuning of Gap Plasmon Resonances Using a Solid-State Electrochromic Device. United States: N. p., 2019. Web. doi:10.1021/acs.nanolett.9b03143.
Li, Yiyang, van de Groep, Jorik, Talin, A. Alec, & Brongersma, Mark L. Dynamic Tuning of Gap Plasmon Resonances Using a Solid-State Electrochromic Device. United States. doi:10.1021/acs.nanolett.9b03143.
Li, Yiyang, van de Groep, Jorik, Talin, A. Alec, and Brongersma, Mark L. Fri . "Dynamic Tuning of Gap Plasmon Resonances Using a Solid-State Electrochromic Device". United States. doi:10.1021/acs.nanolett.9b03143.
@article{osti_1570265,
title = {Dynamic Tuning of Gap Plasmon Resonances Using a Solid-State Electrochromic Device},
author = {Li, Yiyang and van de Groep, Jorik and Talin, A. Alec and Brongersma, Mark L.},
abstractNote = {Plasmonic antennas and metasurfaces can effectively control light–matter interactions, and this facilitates a deterministic design of optical materials properties, including structural color. However, these optical properties are generally fixed after synthesis and fabrication, while many modern-day optics applications require active, low-power, and nonvolatile tuning. These needs have spurred broad research activities aimed at identifying materials and resonant structures capable of achieving large, dynamic changes in optical properties, especially in the challenging visible spectral range. In this work, we demonstrate dynamic tuning of polarization-dependent gap plasmon resonators that contain the electrochromic oxide WO3. Its refractive index in the visible changes continuously from n = 2.1 to 1.9 upon electrochemical lithium insertion and removal in a solid-state device. By incorporating WO3 into a gap plasmon resonator, the resonant wavelength can be shifted continuously and reversibly by up to 58 nm with less than 2 V electrochemical bias voltage. Lastly, the resonator can remain in a tuned state for tens of minutes under open circuit conditions.},
doi = {10.1021/acs.nanolett.9b03143},
journal = {Nano Letters},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

Journal Article:
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This content will become publicly available on October 4, 2020
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