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Title: Strong Casimir force reduction through metallic surface nanostructuring

Abstract

The Casimir force between bodies in vacuum can be understood as arising from their interaction with an infinite number of fluctuating electromagnetic quantum vacuum modes, resulting in a complex dependence on the shape and material of the interacting objects. Becoming dominant at small separations, the force has a significant role in nanomechanics and object manipulation at the nanoscale, leading to a considerable interest in identifying structures where the Casimir interaction behaves significantly different from the well-known attractive force between parallel plates. Here we experimentally demonstrate that by nanostructuring one of the interacting metal surfaces at scales below the plasma wavelength, an unexpected regime in the Casimir force can be observed. Replacing a flat surface with a deep metallic lamellar grating with sub-100 nm features strongly suppresses the Casimir force and for large inter-surfaces separations reduces it beyond what would be expected by any existing theoretical prediction.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [4];  [1];  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Div.
  2. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Nanoscale Science and Technology; Univ. of Maryland, College Park, MD (United States). Maryland Nanocenter
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
  4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Nanoscale Science and Technology
  5. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Applied Photonics and Microsystems
  6. Indiana Univ.-Purdue, Indianapolis, IN (United States). Dept. of Physics
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1623926
Grant/Contract Number:  
AC02-06CH11357; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 4; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Science & Technology - Other Topics

Citation Formats

Intravaia, Francesco, Koev, Stephan, Jung, Il Woong, Talin, A. Alec, Davids, Paul S., Decca, Ricardo S., Aksyuk, Vladimir A., Dalvit, Diego A. R., and López, Daniel. Strong Casimir force reduction through metallic surface nanostructuring. United States: N. p., 2013. Web. doi:10.1038/ncomms3515.
Intravaia, Francesco, Koev, Stephan, Jung, Il Woong, Talin, A. Alec, Davids, Paul S., Decca, Ricardo S., Aksyuk, Vladimir A., Dalvit, Diego A. R., & López, Daniel. Strong Casimir force reduction through metallic surface nanostructuring. United States. https://doi.org/10.1038/ncomms3515
Intravaia, Francesco, Koev, Stephan, Jung, Il Woong, Talin, A. Alec, Davids, Paul S., Decca, Ricardo S., Aksyuk, Vladimir A., Dalvit, Diego A. R., and López, Daniel. Fri . "Strong Casimir force reduction through metallic surface nanostructuring". United States. https://doi.org/10.1038/ncomms3515. https://www.osti.gov/servlets/purl/1623926.
@article{osti_1623926,
title = {Strong Casimir force reduction through metallic surface nanostructuring},
author = {Intravaia, Francesco and Koev, Stephan and Jung, Il Woong and Talin, A. Alec and Davids, Paul S. and Decca, Ricardo S. and Aksyuk, Vladimir A. and Dalvit, Diego A. R. and López, Daniel},
abstractNote = {The Casimir force between bodies in vacuum can be understood as arising from their interaction with an infinite number of fluctuating electromagnetic quantum vacuum modes, resulting in a complex dependence on the shape and material of the interacting objects. Becoming dominant at small separations, the force has a significant role in nanomechanics and object manipulation at the nanoscale, leading to a considerable interest in identifying structures where the Casimir interaction behaves significantly different from the well-known attractive force between parallel plates. Here we experimentally demonstrate that by nanostructuring one of the interacting metal surfaces at scales below the plasma wavelength, an unexpected regime in the Casimir force can be observed. Replacing a flat surface with a deep metallic lamellar grating with sub-100 nm features strongly suppresses the Casimir force and for large inter-surfaces separations reduces it beyond what would be expected by any existing theoretical prediction.},
doi = {10.1038/ncomms3515},
journal = {Nature Communications},
number = 1,
volume = 4,
place = {United States},
year = {Fri Sep 27 00:00:00 EDT 2013},
month = {Fri Sep 27 00:00:00 EDT 2013}
}

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