TY - JOUR
T1 - Two-photon absorption and lasing due to biexciton in CuCl quantum dots
AU - Kagotani, Y.
AU - Miyajima, K.
AU - Oohata, G.
AU - Saito, S.
AU - Ashida, M.
AU - Edamatsu, K.
AU - Itoh, T.
N1 - Funding Information:
This work was 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 - 2005/4
Y1 - 2005/4
N2 - We have demonstrated laser emission in CuCl quantum dots embedded in NaCl matrix by direct creation of biexcitons through two-photon absorption process. Mode distance and emitting direction of laser emission show that cavity is composed of cleaved surfaces of the matrix. In addition, we confirmed that the lasing originated from the biexciton state by taking account of the polarization selection rule of the lowest biexciton state. It is suggested that two-photon excitation of the biexcitons is very useful for high-efficient lasing in quantum dots.
AB - We have demonstrated laser emission in CuCl quantum dots embedded in NaCl matrix by direct creation of biexcitons through two-photon absorption process. Mode distance and emitting direction of laser emission show that cavity is composed of cleaved surfaces of the matrix. In addition, we confirmed that the lasing originated from the biexciton state by taking account of the polarization selection rule of the lowest biexciton state. It is suggested that two-photon excitation of the biexcitons is very useful for high-efficient lasing in quantum dots.
KW - Lasing from biexcitons
KW - Quantum dots laser
KW - Two-photon absorption
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U2 - 10.1016/j.jlumin.2004.09.007
DO - 10.1016/j.jlumin.2004.09.007
M3 - Article
AN - SCOPUS:15544389526
SN - 0022-2313
VL - 112
SP - 113
EP - 116
JO - Journal of Luminescence
JF - Journal of Luminescence
IS - 1
ER -