Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 129, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3037217
Keywords
excitons; gallium arsenide; HF calculations; III-V semiconductors; light polarisation; photon correlation spectroscopy; Raman spectra; semiconductor quantum wells
Funding
- Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, U.S. Department of Energy
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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.
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