Bibliographic Details
| Title: |
Distance-dependent photo-induced electron transport in nanometer-sized junctions. |
| Authors: |
Brian Albee, Xuejun Liu, Faezeh Tork Ladani, Rajen K Dutta, Eric O Potma |
| Source: |
Journal of Optics; May2016, Vol. 18 Issue 5, p1-1, 1p |
| Subject Terms: |
ELECTRON transport, SURFACE plasmons, POLARITONS, PHOTOCURRENTS, WKB approximation |
| Abstract: |
We describe photo-induced current experiments observed in nm-sized electro-migrated nano gaps, using surface plasmon polaritons (SPPs) as the source of the optical driving field. For gaps smaller than 5 nm, we observe a stable photo-induced current that is linear with the intensity of the SPP mode, whereas the photo-current in wider gaps shows a highly nonlinear dependence that is reminiscent of field emission. The results are explained by a modified Wentzel–Kramers–Brillouin tunneling model, which reproduces the observed transition from optical rectification to optically driven field emission in the nano junction. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |
