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Title: Submicrometer Epsilon-Near-Zero Electroabsorption Modulators Enabled by High-Mobility Cadmium Oxide

Abstract

Here, epsilon-near-zero materials provide a new path for tailoring light-matter interactions at the nanoscale. In this paper, we analyze a compact electroabsorption modulator based on epsilon-near-zero confinement in transparent conducting oxide films. The non-resonant modulator operates through field-effect carrier density tuning. We compare the performance of modulators composed of two different conducting oxides, namely indium oxide (In2O3) and cadmium oxide (CdO), and show that better modulation performance is achieved when using high-mobility (i.e. low-loss) epsilon-near-zero materials such as CdO. In particular, we show that non-resonant electroabsorption modulators with sub-micron lengths and greater than 5 dB extinction ratios may be achieved through the proper selection of high-mobility transparent conducting oxides, opening a path for device miniaturization and increased modulation depth.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1371811
Alternate Identifier(s):
OSTI ID: 1369305; OSTI ID: 1371812
Report Number(s):
SAND-2017-6855J
Journal ID: ISSN 1943-0655; 7970105
Grant/Contract Number:  
NA0003525; AC04-94AL85000
Resource Type:
Published Article
Journal Name:
IEEE Photonics Journal (Online)
Additional Journal Information:
Journal Name: IEEE Photonics Journal (Online) Journal Volume: 9 Journal Issue: 4; Journal ID: ISSN 1943-0655
Publisher:
IEEE
Country of Publication:
France
Language:
English
Subject:
36 MATERIALS SCIENCE; epsilon-near-zero; sub-micrometer electroabsorption modulator; transparent conducting oxides; near-infrared; high-mobility materials; cadmium oxide

Citation Formats

Campione, Salvatore, Wood, Michael G., Serkland, Darwin K., Parameswaran, S., Ihlefeld, Jon, Luk, T. S., Wendt, Joel R., Geib, Kent M., and Keeler, Gordon A. Submicrometer Epsilon-Near-Zero Electroabsorption Modulators Enabled by High-Mobility Cadmium Oxide. France: N. p., 2017. Web. doi:10.1109/JPHOT.2017.2723299.
Campione, Salvatore, Wood, Michael G., Serkland, Darwin K., Parameswaran, S., Ihlefeld, Jon, Luk, T. S., Wendt, Joel R., Geib, Kent M., & Keeler, Gordon A. Submicrometer Epsilon-Near-Zero Electroabsorption Modulators Enabled by High-Mobility Cadmium Oxide. France. doi:10.1109/JPHOT.2017.2723299.
Campione, Salvatore, Wood, Michael G., Serkland, Darwin K., Parameswaran, S., Ihlefeld, Jon, Luk, T. S., Wendt, Joel R., Geib, Kent M., and Keeler, Gordon A. Thu . "Submicrometer Epsilon-Near-Zero Electroabsorption Modulators Enabled by High-Mobility Cadmium Oxide". France. doi:10.1109/JPHOT.2017.2723299.
@article{osti_1371811,
title = {Submicrometer Epsilon-Near-Zero Electroabsorption Modulators Enabled by High-Mobility Cadmium Oxide},
author = {Campione, Salvatore and Wood, Michael G. and Serkland, Darwin K. and Parameswaran, S. and Ihlefeld, Jon and Luk, T. S. and Wendt, Joel R. and Geib, Kent M. and Keeler, Gordon A.},
abstractNote = {Here, epsilon-near-zero materials provide a new path for tailoring light-matter interactions at the nanoscale. In this paper, we analyze a compact electroabsorption modulator based on epsilon-near-zero confinement in transparent conducting oxide films. The non-resonant modulator operates through field-effect carrier density tuning. We compare the performance of modulators composed of two different conducting oxides, namely indium oxide (In2O3) and cadmium oxide (CdO), and show that better modulation performance is achieved when using high-mobility (i.e. low-loss) epsilon-near-zero materials such as CdO. In particular, we show that non-resonant electroabsorption modulators with sub-micron lengths and greater than 5 dB extinction ratios may be achieved through the proper selection of high-mobility transparent conducting oxides, opening a path for device miniaturization and increased modulation depth.},
doi = {10.1109/JPHOT.2017.2723299},
journal = {IEEE Photonics Journal (Online)},
number = 4,
volume = 9,
place = {France},
year = {2017},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1109/JPHOT.2017.2723299

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