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

Max Gulde; Reiner Bormann; Alexander Weismann; Sergey V. Yalunin; Claus Ropers

doi:10.1117/12.843110

1 March 2010 Confined electron emission with femtosecond timing: nonlinearity, localization, enhancement

Max Gulde, Reiner Bormann, Alexander Weismann, Sergey V. Yalunin, Claus Ropers

Proceedings Volume 7600, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV; 76001I (2010) https://doi.org/10.1117/12.843110
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

Citation Download Citation

Max Gulde, Reiner Bormann, Alexander Weismann, Sergey V. Yalunin, and Claus Ropers "Confined electron emission with femtosecond timing: nonlinearity, localization, enhancement", Proc. SPIE 7600, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV, 76001I (1 March 2010); https://doi.org/10.1117/12.843110

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