TY - JOUR
T1 - Two-photon excitation of confined biexcitons in CuCl quantum dots
AU - Miyajima, K.
AU - Oohata, G.
AU - Kagotani, Y.
AU - Ashida, M.
AU - Edamatsu, K.
AU - Itoh, T.
N1 - Funding Information:
This work has been partially supported by CREST of Japan Science and Technology Agency and the Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology.
PY - 2005/2
Y1 - 2005/2
N2 - We have studied direct creation processes of confined biexcitons in CuCl quantum dots by polarization-dependent resonant two-photon excitation spectroscopy. The two-photon absorption band for the lowest state of the biexciton (total angular momentum J=0) which appears on the lower energy side of confined exciton band was identified from the analysis of the polarization dependence of the photoluminescence excitation spectrum of the biexciton. Furthermore, the two-photon excitation process for the excited state of the biexciton (J=2) was also found with polarization dependence different from the J=0 biexciton state.
AB - We have studied direct creation processes of confined biexcitons in CuCl quantum dots by polarization-dependent resonant two-photon excitation spectroscopy. The two-photon absorption band for the lowest state of the biexciton (total angular momentum J=0) which appears on the lower energy side of confined exciton band was identified from the analysis of the polarization dependence of the photoluminescence excitation spectrum of the biexciton. Furthermore, the two-photon excitation process for the excited state of the biexciton (J=2) was also found with polarization dependence different from the J=0 biexciton state.
KW - Biexciton
KW - Quantum dots
KW - Two-photon absorption
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U2 - 10.1016/j.physe.2004.08.018
DO - 10.1016/j.physe.2004.08.018
M3 - Conference article
AN - SCOPUS:13444301291
SN - 1386-9477
VL - 26
SP - 33
EP - 36
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
IS - 1-4
T2 - International Conference on Quantum Dots
Y2 - 10 May 2004 through 13 May 2004
ER -