Abstract
Nonlinear photoelectron emission from metallic nanotips is explored in the strong-field regime. The passage between the multiphoton and the optical field emission regimes is clearly identified. The experimental observations are in agreement with a quantum mechanical strong-field model.
- Received 26 May 2010
DOI:https://doi.org/10.1103/PhysRevLett.105.147601
© 2010 The American Physical Society