Ultrafast time resolved photo-electric emission
Autor: | Juffmann, Thomas, Klopfer, Brannon B., Skulason, Gunnar E., Kealhofer, Catherine, Xiao, Fan, Foreman, Seth M., Kasevich, Mark A. |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | Phys. Rev. Lett. 115, 264803 (2015) |
Druh dokumentu: | Working Paper |
DOI: | 10.1103/PhysRevLett.115.264803 |
Popis: | The emission times of laser-triggered electrons from a sharp tungsten tip are directly characterized under ultrafast, near-infrared laser excitation at Keldysh parameters $6.6< \gamma < 19.1$. Emission delays up to 10 fs are observed, which are inferred from the energy gain of photoelectrons emitted into a synchronously driven microwave cavity. ~ fs timing resolution is achieved in a configuration capable of measuring timing shifts up to 55 ps. The technique can also be used to measure the microwave phase inside the cavity with a precision below 70 fs upon the energy resolved detection of a single electron. Comment: 4 pages, 3 figures |
Databáze: | arXiv |
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