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Title: All-optical switching of an epsilon-near-zero plasmon resonance in indium tin oxide

Abstract

Abstract Nonlinear optical devices and their implementation into modern nanophotonic architectures are constrained by their usually moderate nonlinear response. Recently, epsilon-near-zero (ENZ) materials have been found to have a strong optical nonlinearity, which can be enhanced through the use of cavities or nano-structuring. Here, we study the pump dependent properties of the plasmon resonance in the ENZ region in a thin layer of indium tin oxide (ITO). Exciting this mode using the Kretschmann-Raether configuration, we study reflection switching properties of a 60 nm layer close to the resonant plasmon frequency. We demonstrate a thermal switching mechanism, which results in a shift in the plasmon resonance frequency of 20 THz for a TM pump intensity of 70 GW cm −2 . For degenerate pump and probe frequencies, we highlight an additional two-beam coupling contribution, not previously isolated in ENZ nonlinear optics studies, which leads to an overall pump induced change in reflection from 1% to 45%.

Authors:
ORCiD logo; ; ; ; ORCiD logo; ORCiD logo; ORCiD logo;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
OSTI Identifier:
1765929
Alternate Identifier(s):
OSTI ID: 1815449
Grant/Contract Number:  
NA0003525
Resource Type:
Published Article
Journal Name:
Nature Communications
Additional Journal Information:
Journal Name: Nature Communications Journal Volume: 12 Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United Kingdom
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING

Citation Formats

Bohn, Justus, Luk, Ting Shan, Tollerton, Craig, Hutchings, Sam W., Brener, Igal, Horsley, Simon, Barnes, William L., and Hendry, Euan. All-optical switching of an epsilon-near-zero plasmon resonance in indium tin oxide. United Kingdom: N. p., 2021. Web. doi:10.1038/s41467-021-21332-y.
Bohn, Justus, Luk, Ting Shan, Tollerton, Craig, Hutchings, Sam W., Brener, Igal, Horsley, Simon, Barnes, William L., & Hendry, Euan. All-optical switching of an epsilon-near-zero plasmon resonance in indium tin oxide. United Kingdom. https://doi.org/10.1038/s41467-021-21332-y
Bohn, Justus, Luk, Ting Shan, Tollerton, Craig, Hutchings, Sam W., Brener, Igal, Horsley, Simon, Barnes, William L., and Hendry, Euan. Mon . "All-optical switching of an epsilon-near-zero plasmon resonance in indium tin oxide". United Kingdom. https://doi.org/10.1038/s41467-021-21332-y.
@article{osti_1765929,
title = {All-optical switching of an epsilon-near-zero plasmon resonance in indium tin oxide},
author = {Bohn, Justus and Luk, Ting Shan and Tollerton, Craig and Hutchings, Sam W. and Brener, Igal and Horsley, Simon and Barnes, William L. and Hendry, Euan},
abstractNote = {Abstract Nonlinear optical devices and their implementation into modern nanophotonic architectures are constrained by their usually moderate nonlinear response. Recently, epsilon-near-zero (ENZ) materials have been found to have a strong optical nonlinearity, which can be enhanced through the use of cavities or nano-structuring. Here, we study the pump dependent properties of the plasmon resonance in the ENZ region in a thin layer of indium tin oxide (ITO). Exciting this mode using the Kretschmann-Raether configuration, we study reflection switching properties of a 60 nm layer close to the resonant plasmon frequency. We demonstrate a thermal switching mechanism, which results in a shift in the plasmon resonance frequency of 20 THz for a TM pump intensity of 70 GW cm −2 . For degenerate pump and probe frequencies, we highlight an additional two-beam coupling contribution, not previously isolated in ENZ nonlinear optics studies, which leads to an overall pump induced change in reflection from 1% to 45%.},
doi = {10.1038/s41467-021-21332-y},
journal = {Nature Communications},
number = 1,
volume = 12,
place = {United Kingdom},
year = {Mon Feb 15 00:00:00 EST 2021},
month = {Mon Feb 15 00:00:00 EST 2021}
}

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