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Title: Surface-Plasmon-Mediated Gradient Force Enhancement and Mechanical State Transitions of Graphene Sheets

Graphene, a two-dimensional material possessing extraordinary properties in electronics as well as mechanics, provides a great platform for various optoelectronic and opto-mechanical devices. Here in this article, we theoretically study the optical gradient force arising from the coupling of surface plasmon modes on parallel graphene sheets, which can be several orders stronger than that between regular dielectric waveguides. Furthermore, with an energy functional optimization model, possible force-induced deformation of graphene sheets is calculated. We show that the significantly enhanced optical gradient force may lead to mechanical state transitions of graphene sheets, which are accompanied by abrupt changes in reflection and transmission spectra of the system. Our demonstrations illustrate the potential for a broader graphene-related applications such as force sensors and actuators.
 [1] ; ORCiD logo [1] ;  [1] ;  [2]
  1. Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy; Foundation for Research & Technology-Hellas, Crete (Greece). Inst. of Electronic Structure and Laser (IESL)
Publication Date:
Report Number(s):
Journal ID: ISSN 2330-4022
Grant/Contract Number:
AC02-07CH11358; N00014-14-1-0474; 320081
Accepted Manuscript
Journal Name:
ACS Photonics
Additional Journal Information:
Journal Volume: 4; Journal Issue: 1; Journal ID: ISSN 2330-4022
American Chemical Society (ACS)
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); US Office of Naval Research
Country of Publication:
United States
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; graphene; mechanical state transition; optical gradient force; surface plasmon
OSTI Identifier: