Phase Evolution of Solitonlike Optical Pulses during Excitonic Rabi Flopping in a Semiconductor

Nielsen, Nils C.; Siederdissen, Tilman Höner zu; Kühl, J.; Schaarschmidt, Martin; Förstner, Jens; Knorr, Andreas; Gießen, Harald

doi:10.1103/physrevlett.94.057406

Cited by 18 publications

(14 citation statements)

References 31 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The observed strong damping of these oscillations is a subject of intense discussion [10 -14]. The phase evolution during excitonic Rabi flopping in bulk semiconductors was recently measured [15]. Some evidence for co-herent coupling of pairs of exciton states was also found [16].…”

mentioning

confidence: 99%

Coherent Control and Polarization Readout of Individual Excitonic States

2005

View full text Add to dashboard Cite

We present measurements and simulations of coherent control and readout of the polarization in individual exciton states. The readout is accomplished by transient four-wave mixing detected by heterodyne spectral interferometry. We observe Rabi oscillations in the polarization, which show half the period of the Rabi oscillations in the population. A decrease of the oscillation amplitude with pulse area is observed, which is not accompanied by a change in the dephasing time. This suggests the transfer of the excitation to other states as the origin of the Rabi-oscillation damping. Detuning of the excitation enables the control of the polarization in phase and amplitude and is in qualitative agreement with simulations for a two-level system. Additionally, simultaneous Rabi flopping of several spatially and energetically close exciton states is demonstrated.

show abstract

mentioning

confidence: 99%

Coherent Control and Polarization Readout of Individual Excitonic States

2005

View full text Add to dashboard Cite

show abstract

“…The conditions considered in this paper (very short and highintensity pulses, short distances of propagation) are in good agreement with the requirements of semiconductor materials which possess short relaxation times and comparatively high transition dipole moments. The theoretical and experimental results on self-induced transmission in semiconductors were reported, for example, in [17][18][19][20]. Another prospective material for SIT collision experiments is the collection of semiconductor quantum dots which can be considered as artificial two-level atoms with high dipole moments [21,22].…”

Section: Discussionmentioning

confidence: 99%

Controlled absorption and all-optical diode action due to collisions of self-induced-transparency solitons

Novitsky

2012

Phys. Rev. A

View full text Add to dashboard Cite

We study inelastic collisions of counter-propagating self-induced transparency solitons in a homogeneously broadened two-level medium. The energy of the pulse can be almost totally absorbed in the medium due to asymmetric collision with a properly chosen control pulse. The medium state thus prepared demonstrates the property of an all-optical diode which transmits pulses from one direction and blocks from another. The saturation process of a controlled absorption effect, local-field correction influence, and the parameter ranges for the diode action are studied as well.

show abstract

“…of almost p, which is equivalent to a change of sign of the field. This is explained as the coherent dip that is the interference between incident light and coherent emitted light from the 1S exciton [7,8]. Furthermore, second dip structure is observed around 900 fs in temporal domain.…”

mentioning

confidence: 91%