Long-range wetting transparency on top of layered metal-dielectric substrates
It has been recently shown that scores of physical and chemical phenomena (including spontaneous emission, scattering and Förster energy transfer) can be controlled by nonlocal dielectric environments provided by metamaterials with hyperbolic dispersion and simpler metal/dielectric structures. At th...
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| Formaat: | Artikel |
| Taal: | en_US |
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Nature Publishing Group
2017
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| Online toegang: | http://hdl.handle.net/1721.1/109986 |
| _version_ | 1826210713683623936 |
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| author | Noginov, M. A. Barnakov, Yuri A. Prayakarao, Srujana Bonner, Carl E. Narimanov, Evgenii E. Liberman, Vladimir |
| author2 | Lincoln Laboratory |
| author_facet | Lincoln Laboratory Noginov, M. A. Barnakov, Yuri A. Prayakarao, Srujana Bonner, Carl E. Narimanov, Evgenii E. Liberman, Vladimir |
| author_sort | Noginov, M. A. |
| collection | MIT |
| description | It has been recently shown that scores of physical and chemical phenomena (including spontaneous emission, scattering and Förster energy transfer) can be controlled by nonlocal dielectric environments provided by metamaterials with hyperbolic dispersion and simpler metal/dielectric structures. At this time, we have researched van der Waals interactions and experimentally studied wetting of several metallic, dielectric and composite multilayered substrates. We have found that the wetting angle of water on top of MgF2 is highly sensitive to the thickness of the MgF2 layer and the nature of the underlying substrate that could be positioned as far as ~100 nm beneath the water/MgF2 interface. We refer to this phenomenon as long range wetting transparency. The latter effect cannot be described in terms of the most basic model of dispersion van der Waals-London forces based on pair-wise summation of dipole-dipole interactions across an interface or a gap separating the two media. We infer that the experimentally observed gradual change of the wetting angle with increase of the thickness of the MgF2 layer can possibly be explained by the distance dependence of the Hamaker function (describing the strength of interaction), which originates from retardation of electromagnetic waves at the distances comparable to a wavelength. |
| first_indexed | 2024-09-23T14:54:19Z |
| format | Article |
| id | mit-1721.1/109986 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:54:19Z |
| publishDate | 2017 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/1099862022-09-29T11:22:28Z Long-range wetting transparency on top of layered metal-dielectric substrates Noginov, M. A. Barnakov, Yuri A. Prayakarao, Srujana Bonner, Carl E. Narimanov, Evgenii E. Liberman, Vladimir Lincoln Laboratory Liberman, Vladimir It has been recently shown that scores of physical and chemical phenomena (including spontaneous emission, scattering and Förster energy transfer) can be controlled by nonlocal dielectric environments provided by metamaterials with hyperbolic dispersion and simpler metal/dielectric structures. At this time, we have researched van der Waals interactions and experimentally studied wetting of several metallic, dielectric and composite multilayered substrates. We have found that the wetting angle of water on top of MgF2 is highly sensitive to the thickness of the MgF2 layer and the nature of the underlying substrate that could be positioned as far as ~100 nm beneath the water/MgF2 interface. We refer to this phenomenon as long range wetting transparency. The latter effect cannot be described in terms of the most basic model of dispersion van der Waals-London forces based on pair-wise summation of dipole-dipole interactions across an interface or a gap separating the two media. We infer that the experimentally observed gradual change of the wetting angle with increase of the thickness of the MgF2 layer can possibly be explained by the distance dependence of the Hamaker function (describing the strength of interaction), which originates from retardation of electromagnetic waves at the distances comparable to a wavelength. United States. Dept. of Defense. Assistant Secretary of Defense for Research & Engineering (Air Force Contract No. FA8721-05-C-0002) National Science Foundation (U.S.) (Partnerships for Research and Education in Materials grant DMR 1205457) United States. Air Force. Office of Scientific Research (grant FA9550-14-1-0221) United States. Army Research Office (grant W911NF-14-1-0639) National Science Foundation (U.S.). Materials Research Science and Engineering Centers (Program) (grant DMR 1120923) Gordon and Betty Moore Foundation 2017-06-16T20:31:03Z 2017-06-16T20:31:03Z 2016-06 2015-11 Article http://purl.org/eprint/type/JournalArticle 2045-2322 http://hdl.handle.net/1721.1/109986 Noginov, M. A., Yuri A. Barnakov, Vladimir Liberman, Srujana Prayakarao, Carl E. Bonner, and Evgenii E. Narimanov. “Long-Range Wetting Transparency on Top of Layered Metal-Dielectric Substrates.” Scientific Reports 6 (June 21, 2016): 27834. © 2017 Macmillan Publishers Limited en_US http://dx.doi.org/10.1038/srep27834 Scientific Reports Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature |
| spellingShingle | Noginov, M. A. Barnakov, Yuri A. Prayakarao, Srujana Bonner, Carl E. Narimanov, Evgenii E. Liberman, Vladimir Long-range wetting transparency on top of layered metal-dielectric substrates |
| title | Long-range wetting transparency on top of layered metal-dielectric substrates |
| title_full | Long-range wetting transparency on top of layered metal-dielectric substrates |
| title_fullStr | Long-range wetting transparency on top of layered metal-dielectric substrates |
| title_full_unstemmed | Long-range wetting transparency on top of layered metal-dielectric substrates |
| title_short | Long-range wetting transparency on top of layered metal-dielectric substrates |
| title_sort | long range wetting transparency on top of layered metal dielectric substrates |
| url | http://hdl.handle.net/1721.1/109986 |
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