4D visualization of embryonic, structural crystallization by single-pulse microscopy (2008)
Kwon, Oh-Hoon, Barwick, Brett, Park, Hyun Soon, Baskin, J. Spencer, Zewail, Ahmed H.
A macroscopic test of the Aharonov-Bohm effect (2007)
Caprez, Adam, Barwick, Brett, Batelaan, Herman
The Aharonov-Bohm (AB) effect is a purely quantum mechanical effect. The original (classified as Type-I) AB-phase shift exists in experimental conditions where the electromagnetic fields and forces...
Laser-induced ultrafast electron emission from a field emission tip (2007)
Barwick, Brett, Corder, Chris, Strohaber, James, Chandler-Smith, Nate, Uiterwaal, Cornelis, Batelaan, Herman
We show that a field emission tip electron source that is triggered with a femtosecond laser pulse can generate electron pulses shorter than the laser pulse duration (~100 fs). The emission process...
A three grating electron interferometer (2006)
Gronniger, Glen, Barwick, Brett, Batelaan, Herman
We report the observation of fringes from a three grating electron interferometer. Interference fringes have been observed at low energies ranging from 6 keV to 10 keV. Contrasts of up to 25% are...