TY - JOUR
T1 - Resonant excitation and anti-Stokes luminescence of GaAs single quantum dots
AU - Edamatsu, K.
AU - Watatani, C.
AU - Itoh, T.
AU - Shimomura, S.
AU - Hiyamizu, S.
N1 - Funding Information:
This work was supported by Grant-in-Aid for COE Research (10CE2004) and Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2001/12
Y1 - 2001/12
N2 - We have investigated micro-photoluminescence (μ-PL) and excitation (μ-PLE) spectra of a single GaAs/AlGaAs quantum dot grown on a GaAs (411) A surface. We observed sharp resonant lines in both μ-PL and μ-PLE spectra, corresponding to the discrete energy levels of the dot. When the sample was excited at one of the resonant lines, resonant luminescence lines appeared not only in Stokes' side but also in anti-Stokes' side. We discuss the possible origins of the anomalous anti-Stokes luminescence.
AB - We have investigated micro-photoluminescence (μ-PL) and excitation (μ-PLE) spectra of a single GaAs/AlGaAs quantum dot grown on a GaAs (411) A surface. We observed sharp resonant lines in both μ-PL and μ-PLE spectra, corresponding to the discrete energy levels of the dot. When the sample was excited at one of the resonant lines, resonant luminescence lines appeared not only in Stokes' side but also in anti-Stokes' side. We discuss the possible origins of the anomalous anti-Stokes luminescence.
KW - Anti-Stokes luminescence
KW - GaAs
KW - Quantum dots
KW - Single quantum dot
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U2 - 10.1016/S0022-2313(01)00247-2
DO - 10.1016/S0022-2313(01)00247-2
M3 - Article
AN - SCOPUS:0035702434
SN - 0022-2313
VL - 94-95
SP - 143
EP - 146
JO - Journal of Luminescence
JF - Journal of Luminescence
ER -