Optical magnetism in planar metamaterial heterostructures
Abstract
Harnessing artificial optical magnetism has previously required complex two- and three-dimensional structures, such as nanoparticle arrays and split-ring metamaterials. By contrast, planar structures, and in particular dielectric/metal multilayer metamaterials, have been generally considered non-magnetic. Although the hyperbolic and plasmonic properties of these systems have been extensively investigated, their assumed non-magnetic response limits their performance to transverse magnetic (TM) polarization. We propose and experimentally validate a mechanism for artificial magnetism in planar multilayer metamaterials. We also demonstrate that the magnetic properties of high-index dielectric/metal hyperbolic metamaterials can be anisotropic, leading to magnetic hyperbolic dispersion in certain frequency regimes. We show that such systems can support transverse electric polarized interface-bound waves, analogous to their TM counterparts, surface plasmon polaritons. Our results open a route for tailoring optical artificial magnetism in lithography-free layered systems and enable us to generalize the plasmonic and hyperbolic properties to encompass both linear polarizations.
Additional Information
© 2018 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Received: 16 May 2017; Accepted: 11 December 2017; Published online: 18 January 2018. This work was supported by U.S. Department of Energy (DOE) Office of Science grant DE-FG02-07ER46405 (G.T.P. and H.A.A.) and the Air Force Office of Scientific Research (A.D.) under grant FA9550-16-1-0019. G.T.P. acknowledges support by the National Science Foundation Graduate Research Fellowship, the American Association of University Women Dissertation Fellowship, and NG NEXT at Northrop Grumman Corporation. We acknowledge fruitful discussions with Dr T. Tiwald, Dr R. Pala, Dr K. Thyagarajan, Dr C. Santis, Dr O. Ilic, Dr L. Sweatlock, Dr G. Tagliabue, K. Mauser, Dr V. F. Chernow, and J.E. Herriman. We also thank C. Garland and B. Baker for assistance with sample preparation. Author Contributions: G.T.P. developed the theoretical model together with A.D., carried out the numerical simulations and calculations, the experimental measurements and ellipsometric fittings. D.F. fabricated the samples and took the TEM images. A.D. also contributed to the finite elements simulations. P.Y. and H.A.A. contributed to the parameter retrieval and underlying physics. H.A.A. supervised the project. All authors contributed to the preparation of the manuscript. The authors declare no competing financial interests.Attached Files
Published - s41467-017-02589-8.pdf
Submitted - 1608.02909.pdf
Supplemental Material - 41467_2017_2589_MOESM1_ESM.pdf
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Additional details
- PMCID
- PMC5773539
- Eprint ID
- 84432
- Resolver ID
- CaltechAUTHORS:20180119-154213290
- Department of Energy (DOE)
- DE-FG02-07ER46405
- Air Force Office of Scientific Research (AFOSR)
- FA9550-16-1-0019
- NSF Graduate Research Fellowship
- American Association of University Women
- Northrop Grumman Corporation
- Created
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2018-01-20Created from EPrint's datestamp field
- Updated
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2022-03-18Created from EPrint's last_modified field
- Caltech groups
- Kavli Nanoscience Institute, Resnick Sustainability Institute