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Conference Paper

Confined electron emission with femtosecond timing: nonlinearity, localization, enhancement

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Ropers,  Claus       
Department of Ultrafast Dynamics, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Gulde, M., Bormann, R., Weismann, A., Yalunin, S. V., & Ropers, C. (2010). Confined electron emission with femtosecond timing: nonlinearity, localization, enhancement. In Proceedings Volume 7600, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV.


Cite as: https://hdl.handle.net/21.11116/0000-000B-60D3-A
Abstract
The local extraction of electrons from metal nanotips is an essential component of both scanning tunneling microscopes and transmission or scanning electron microscopes based on field emission cathodes. Laser-induced electron emission from sharp tip structures is a prerequisite for equipping such methods with ultrafast temporal resolution. In this paper, recent experiments on femtosecond electron emission from sharp gold tips are discussed. Based on far-field and near-field characterization, confined multiphoton electron emission from the apex is demonstrated. The effective nonlinearity can be tuned by the application of an additional static bias voltage.