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Spatially Localized Multiphoton Emission of Femtosecond Electron Pulses from Metal Nano-Tips
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ropers, Claus Solli, Daniel R. Schulz, C. Lienau, Christoph Elsaesser, Thomas |
| Copyright Year | 2006 |
| Abstract | Intense multiphoton electron emission is observed from sharp (∼ 20 nm radius) metallic tips illuminated with weak 100 pJ, 7-fs light pulses. Local field enhancement, evidenced by concurrent nonlinear light generation, confines the emission to the tip apex. Electrons are emitted from a highly excited nonequilibrium carrier distribution, resulting in a marked change of the absolute electron flux and its dependence on optical power with the tip bias voltage. The strong optical nonlinearity of the electron emission allows us to image the local optical field near a metallic nanostructure with a spatial resolution of few tens of nanometers in a novel tip-enhanced electron emission microscope. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.uni-oldenburg.de/fileadmin/user_upload/physik/ag/uno/download/years/2006/2006.14/ropers_prl_rs.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
