The procedure of stimulated-Raman adiabatic passage (STIRAP), one of many well-
established techniques for quantum-state manipulation, finds widespread application in …

In this paper we consider the interaction of inhomogeneously broadened two-level atoms
with a train of pulses from a femtosecond mode-locked laser. Analytical results are obtained …

We investigate coherent accumulation processes in three-level atoms excited by a train of
ultrashort pulses in the case where the atomic relaxation times are greater than the laser …

A scheme to infer the temporal coherence of EUV frequency combs generated from
intracavity high-order harmonic generation is put forward. The excitation dynamics of highly …

We present direct observation of the velocity-selective optical pumping of the Rb ground
state hyperfine levels induced by 5 S 1/2→ 5 P 1/2 femtosecond pulse-train excitation. A …

A mode-locked femtosecond laser is used to physically map the laser frequency comb into
the velocity comb of the excited Rb atoms at room temperature. Upon resonant excitation by …

Coherent population accumulations of multiphoton transitions induced by an ultrashort pulse
train in a two-level polar molecule are investigated theoretically by solving the density-matrix …

Direct frequency-comb spectroscopy is a technique that employs a train of well-stabilized
ultrashort pulses to study the spectral properties of atomic or molecular systems. In this way …

In this paper, we propose a scheme to achieve selective population transfer in a Λ-type three-
level atomic system with a train of periodical Gaussian pulses. Based on temporal …

We study resonantly enhanced cascaded two-photon transitions in Doppler-broadened
rubidium vapor, induced by an optical frequency comb. Cascaded two-step excitation of …