Coherent driving of Tm3+:YAG ions using a complex hyperbolic secant optical field
Laboratoire Aimé Cotton, Centre National de la Recherche Scientifique,
Bâtiment 505, Campus Universitaire, 91405 Orsay, France
Corresponding author: a email@example.com
Published online: 15 June 2005
We investigate the coherent driving of atomic systems by Complex Hyperbolic Secant (CHS) pulses in optical domain. First, with the help of a Rapid Adiabatic Passage approach we get physical insight into the process. We discuss the limiting factors on spectral selectivity and transfer efficiency, such as finite coherence lifetime and excitation finite duration. Then, with a highly-stabilized cw laser and fast electronic equipment, we experimentally explore the CHS process at s-timescale in a Tm3+:YAG crystal. We demonstrate efficient adiabatic transfer over a few hundreds of kHz-wide spectral interval within the inhomogeneous linewidth. We calculate and detect the Free Induction Decay signal as the signature of the atomic coherences during the process.
PACS: 42.50.Md – Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency / 32.80.Qk – Coherent control of atomic interactions with photons / 03.67.Lx – Quantum computation
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005