Sub-Doppler absorption narrowing in atomic vapor at two intense laser fields

Reconstruction of Atomic Ionization Probabilities in Intense Laser Fields

Application of a parallel-projection inversion technique to z-scan spectra of multiply charged xenon and krypton ions, obtained by non-resonant field ionization of neutral targets, has for the first time permitted the direct observation of intensity-dependent ionization probabilities. These ionization efficiency curves have highlighted the presence of structure in the tunnelling regime, previou...

Simplest Atomic System for Sub-Doppler Laser Cooling

Two-photon dichroic atomic vapor laser lock using electromagnetically induced transparency and absorption

F. E. Becerra, R. T. Willis, S. L. Rolston, and L. A. Orozco* Joint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742, USA Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV), Apdo. Post. 14-740, 07000 México, Distrito Federal, México...

Sub-Doppler bandwidth atomic optical filter.

We demonstrate what is to our knowledge the first atomic optical filter that uses velocity selection to achieve a passband width that is less than the Doppler width of the filtering transition. A narrow-linewidth pump laser is used to induce circular birefringence in a narrow velocity class of atoms in a dense potassium vapor for 694-nm light resonant with the 4P(3/2)-6S(1/2) transition. The fi...

Ja n 20 07 Harmonium in intense laser fields : excitation , absorption , and transparency

It is known that the dynamics of two (Coulomb-interacting) nonrelativis-tic electrons confined by a parabolic potential and driven by a classical, intense laser field (in dipole approximation) is exactly soluble. We calculate the time-dependent population of the harmonic oscillator states and the energy absorbed from the laser. It turns out that the key entity on which all observables sensitive...