Intracycle Interference in Strong-Field Photoemission from a Tungsten Needle Tip
arXiv:2611.14205 · doi:10.1103/t87j-1ngl
Abstract
Electrons photoemitted by strong laser fields can rescatter, generating attosecond high harmonics. Spectral peaks arise from inter- and intracycle interference of coherent electron wave packets. While intercycle interference is well known, intracycle interference of plateau electrons has not been observed. We present carrier-envelope phase-resolved photoemission spectra from a nanometric tungsten needle tip driven at 1570 nm revealing such interference, supported by quantum orbit and TDSE simulations that elucidate attosecond-scale electron dynamics.
arXiv commentPublished in Physical Review Letters
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