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

被引：55
|
作者：
Yang, Lijun [1 ]
Zhang, Tianhao [2 ,3 ,4 ]
Bristow, Alan D. [2 ,3 ]
Cundiff, Steven T. [2 ,3 ]
Mukamel, Shaul [1 ]
机构：
[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
[2] Univ Colorado, JILA, Boulder, CO 80309 USA
[3] Natl Inst Stand & Technol, Boulder, CO 80309 USA
[4] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
来源：
JOURNAL OF CHEMICAL PHYSICS | 2008年 / 129卷 / 23期
关键词：
excitons; gallium arsenide; HF calculations; III-V semiconductors; light polarisation; photon correlation spectroscopy; Raman spectra; semiconductor quantum wells;
D O I：
10.1063/1.3037217
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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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页数：9
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