Differential measurements of Raman coherence and two-exciton correlations in quantum wells

Hawkins, Scot A.; Gansen, Eric J.; Stevens, Martin J.; Smirl, Arthur L.; Rumyantsev, I.; Takayama, R.; Kwong, N. H.; Binder, R.; Steel, Duncan G.

doi:10.1103/physrevb.68.035313

Cited by 18 publications

(15 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…II͒. 38 Evidence for intervalence band coherences were also found by using the optical Stark effect. [34][35][36] The correlation of the inhomogeneity may also affect the investigation of Raman coherence.…”

Section: Isolating Excitonic Raman Coherence In Semiconductors Using mentioning

confidence: 83%

“…37 Furthermore, Raman coherence is overlapped with optical coherence in conventional two-pulse or threepulse TFWM experiments. 19 This signal can reveal Raman coherences 29,33,38 and other many-body correlations unavailable in the traditional S I ͑⍀ 3 , t 2 , ⍀ 1 ͒ signal. 29 Further work revealed the essential role of exciton-exciton interactions in the signal.…”

Section: Isolating Excitonic Raman Coherence In Semiconductors Using mentioning

confidence: 99%

See 1 more Smart Citation

Isolating excitonic Raman coherence in semiconductors using two-dimensional correlation spectroscopy

Yang

Zhang

Bristow³

et al. 2008

The Journal of Chemical Physics

View full text Add to dashboard Cite

We present the experimental and simulation results of two-dimensional optical coherent correlation spectroscopy signals along the phase-matching direction k(I) = -k(1) + k(2) + k(3) projected on the two-dimensional (2D) (Omega(3),Omega(2)) plane corresponding to the second and third delay periods. Overlapping Raman coherences in the conventional (Omega(3),Omega(1)) 2D projection may now be clearly resolved. The linewidths of the heavy-hole (HH) and light-hole (LH) excitonic Raman coherence peaks are obtained. Further insights on the higher-order (beyond time-dependent Hartree-Fock) correlation effects among mixed (HH and LH) two excitons can be gained by using a cocircular pulse polarization configuration.

show abstract

Section: Isolating Excitonic Raman Coherence In Semiconductors Using mentioning

confidence: 83%

Section: Isolating Excitonic Raman Coherence In Semiconductors Using mentioning

confidence: 99%

Isolating excitonic Raman coherence in semiconductors using two-dimensional correlation spectroscopy

Yang

Zhang

Bristow³

et al. 2008

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

“…In semiconductors, non-radiative Raman coherence between HH and LH excitonic states was measured from the quantum beats in a transient absorption experiment [137]. Further work studied the essential role of exciton-exciton interactions in producing the signal [138]. Evidence for inter-valence band coherences was also found by using the optical Stark effect [132].…”

Section: Chapter 7 Raman Coherences Revealed By Alternative 2d Ftsmentioning

confidence: 98%

Polarized Optical Two-dimensional Fourier Transform Spectroscopy of Semiconductors

Zhang¹,

Li²,

Cundiff³

et al. 2006

15th International Conference on Ultrafast Phenomena

View full text Add to dashboard Cite

show abstract

“…One of possible mechanisms suggested in Ref. 30 could be as follows. The probe pulse creates an oscillating polarization due to coherent excitation of several exciton states.…”

Section: Introductionmentioning

confidence: 99%

Multiple-frequency quantum beats of quantum confined exciton states

et al. 2015

View full text Add to dashboard Cite

Multiple quantum beats of a system of the coherently excited quantum confined exciton states in a high-quality heterostructure with a wide InGaAs/GaAs quantum well are experimentally detected by the spectrally resolved pump-probe method for the first time. The beat signal is observed as at positive as at negative delays between the pump and probe pulses. A theoretical model is developed, which allows one to attribute the QBs at negative delay to the four-wave mixing (FWM) signal detected at the non-standard direction. The beat signal is strongly enhanced by the interference of the FWM wave with the polarization created by the probe pulse. At positive delay, the QBs are due to the mutual interference of the quantum confined exciton states. Several QB frequencies are observed in the experiments, which coincide with the interlevel spacings in the exciton system. The decay time for QBs is of order of several picoseconds at both the positive and negative delays. They are close to the relaxation time of exciton population that allows one to consider the exciton depopulation as the main mechanism of the coherence relaxation in the system under study. arXiv:1507.04198v1 [cond-mat.mes-hall] 15 Jul 2015

show abstract

Differential measurements of Raman coherence and two-exciton correlations in quantum wells

Cited by 18 publications

References 61 publications

Isolating excitonic Raman coherence in semiconductors using two-dimensional correlation spectroscopy

Isolating excitonic Raman coherence in semiconductors using two-dimensional correlation spectroscopy

Polarized Optical Two-dimensional Fourier Transform Spectroscopy of Semiconductors

Multiple-frequency quantum beats of quantum confined exciton states

Contact Info

Product

Resources

About