538 citations · 660 across the 7 of their papers we have counts for
7 papers
Towards direct spatial and intensity characterization of ultra-high intensity laser pulses using ponderomotive scattering of free electrons
A. Longman, S. Ravichandran, L. Manzo +12
Spatial distributions of electrons ionized and scattered from ultra-low pressure gases are proposed and experimentally demonstrated as a method to directly measure the intensity of…
Imaging electron angular distributions to assess a full-power petawatt-class laser focus
Smrithan Ravichandran, Marine Huault, Roberto Lera +5
We present a novel technique to assess the focal volume of petawatt-class lasers at full power. Our approach exploits quantitative measurement of the angular distribution of electr…
Towards a direct measurement of the quantum vacuum Lagrangian coupling coefficients using two counter propagating super-intense laser pulses
Luis Roso, Roberto Lera, Smrithan Ravichandran +8
In this paper we will show that photon-photon collision experiments using extreme lasers can provide measurable effects giving fundamental information about the essence of QED, its…
Towards an in situ, full-power gauge of the focal-volume intensity of petawatt-class lasers
C. Z. He, A. Longman, J. A. Pérez-Hernández +7
About 50 years ago, Sarachick and Schappert [Phys. Rev. D. 1, 2738 (1970)] showed that relativistic Thomson scattering leads to wavelength shifts that are proportional to the laser…
Contact resistance and phase slips in mesoscopic superfluid atom transport
S. Eckel, Jeffrey G. Lee, F. Jendrzejewski +3
We have experimentally measured transport of superfluid, bosonic atoms in a mesoscopic system: a small channel connecting two large reservoirs. Starting far from equilibrium (super…
Superflow in a toroidal Bose-Einstein condensate: an atom circuit with a tunable weak link
A. Ramanathan, K. C. Wright, S. R. Muniz +6
We have created a long-lived (~ 40 s) persistent current in a toroidal Bose-Einstein condensate held in an all-optical trap. A repulsive optical barrier creates a tunable weak link…