Partial rectification of the plasmon-induced electrical tunnel current in discontinuous thin gold film at optical frequency

Yajadda, M.M.A., Müller, K.-H., Farrant, D.I., & Ostrikov, K. (2012) Partial rectification of the plasmon-induced electrical tunnel current in discontinuous thin gold film at optical frequency. Applied Physics Letters, 100(21), p. 211105.

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Abstract

The effect of plasmonoscillations, induced by pulsed laserirradiation, on the DC tunnel current between islands in a discontinuous thin goldfilm is studied. The tunnel current is found to be strongly enhanced by partial rectification of the plasmon-induced AC tunnel currents flowing between adjacent gold islands. The DC tunnel current enhancement is found to increase approximately linearly with the laser intensity and the applied DC bias voltage. The experimental data can be well described by an electron tunnelling model which takes the plasmon-induced AC voltage into account. Thermal heating seems not to contribute to the tunnel current enhancement.

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ID Code: 73610
Item Type: Journal Article
Refereed: Yes
DOI: 10.1063/1.4720513
ISSN: 0003-6951
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 09 Jul 2014 02:05
Last Modified: 09 Jul 2014 02:05

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