Observing superradiant decay of excited-state helium atoms inside helium plasma.
- Additional Document Info
- View All
Using femtosecond transient absorption spectroscopy on excited-state helium atoms in a plasma created through optical field ionization, we measured the decay of 2(3)S-2(3)P excitation with sub-ps temporal resolution. The population evolution shows that initial decay is significantly faster than the electron-atom collisions and three orders of magnitude faster than the single atom spontaneous decay rate. This indicates on superradiant coherent behavior of the atomic system inside the plasma.
author list (cited authors)
Xia, H., Svidzinsky, A. A., Yuan, L., Lu, C., Suckewer, S., & Scully, M. O.
complete list of authors
Xia, Hui||Svidzinsky, Anatoly A||Yuan, Luqi||Lu, Chao||Suckewer, Szymon||Scully, Marlan O