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Journal articles
Plasmon switching: observation of dynamic surface plasmon steering by selective mode excitation in a subwavelength slit
Abstract : We report a plasmon steering method that enables us to dynamically control the direction of surface plasmons generated by a two-mode slit in a thin metal film. By varying the phase between different coherent beams that are incident on the slit, individual waveguide modes are excited. Different linear combinations of the two modes lead to different diffracted fields at the exit of the slit. As a result, the direction in which surface plasmons are launched can be controlled. Experiments confirm that it is possible to distribute an approximately constant surface plasmon intensity in any desired proportion over the two launching directions. We also find that the anti-symmetric mode generates surface plasmons more efficiently than the fundamental symmetric mode.
Cited literature [27 references]
https://hal-iogs.archives-ouvertes.fr/hal-00812814
Contributor : Christophe Sauvan Connect in order to contact the contributor
Submitted on : Friday, April 12, 2013 - 6:13:06 PM
Last modification on : Tuesday, October 6, 2020 - 4:30:48 PM
Long-term archiving on: : Saturday, July 13, 2013 - 4:11:04 AM
Contributor : Christophe Sauvan Connect in order to contact the contributor
Submitted on : Friday, April 12, 2013 - 6:13:06 PM
Last modification on : Tuesday, October 6, 2020 - 4:30:48 PM
Long-term archiving on: : Saturday, July 13, 2013 - 4:11:04 AM
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gan_oe_12.pdf
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