| Issue |
EPL
Volume 94, Number 6, June 2011
|
|
|---|---|---|
| Article Number | 64002 | |
| Number of page(s) | 5 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/94/64002 | |
| Published online | 07 June 2011 | |
Negative light pressure force between two metal bodies separated by a subwavelength slit
1
Physikalisch-Technische Bundesanstalt (PTB) - 100 Bundesallee, 38116 Braunschweig, Germany, EU
2
Institute of Automation and Electrometry, SB RAS - 1 Koptyug ave., 630090 Novosibirsk, Russia
3
Novosibirsk State University - 2 Pirogov str., 630090 Novosibirsk, Russia
Received:
20
December
2010
Accepted:
29
April
2011
An explicit analytical expression of a light-induced attractive force between two macroscopic metal bodies or films separated by a subwavelength slit has been derived. The analytical expression obtained agrees well with the numerical calculations for the main TM mode. This force, which acts as a force with negative light pressure, arises by the interaction of plasmon-polaritons excited at the surface of metal when light propagates through the subwavelength slit. Estimations of this light-induced attractive force show that the force is sufficient to enable measurements and practical applications.
PACS: 42.50.Wk – Mechanical effects of light on material media, microstructures and particles / 42.25.Bs – Wave propagation, transmission and absorption / 73.20.Mf – Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)
© EPLA, 2011
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