Abstract
A resonant optical excitation creates an excited state population and also induces an optical polarization. Dynamics of this optical excitation is characterized by relaxation of the population as well as decay of the induced optical polarization. In lower dimensional semiconductors, electronic confinement leads to qualitative changes in population relaxation, including spontaneous emission and exciton-phonon scattering, as shown in extensive recent studies [1]. These population relaxation processes are expected to contribute to dephasing with a dephasing rate given by half the population decay rate. Pure dephasing processes that do not involve population or energy relaxation of excitons can also contribute to dephasing. Pure dephasing, which is a well-established concept for atomic systems, remains yet to be investigated in lower-dimensional semiconductors due to a lack of direct comparison between dephasing and population relaxation and between theory and experiment. Studies of pure dephasing processes in lower-dimensional semiconductors will renew and deepen our understanding of dephasing of collective excitations in solids, although several seminal studies were done on the exciton dephasing in quantum well (QW) structures [2–6].
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References
See, for example, Confined Electrons and Photons, New Physics and Devices, ed. by E. Burstein, C. Weisbuch (Plenum, New York, 1995);
Microcrystalline and Nanocrystalline Semiconductors, Materials Res. Soc. Symp. Proc. Vol. 358, eds. R.W. Collins, C.C. Tsai, M. Hirose, F. Koch, L. Brus (Materials Research Society, Pittsburgh 1995)
J. Hegarty, M.D. Sturge: J. Opt. Soc. Am. B 2, 1143 (1985)
M.D. Webb, S.T. Cundiff, D.G. Steel: Phys. Rev. B 43, 12658 (1991)
L. Schultheis, A. Honold, J. Kuhl, K. Köhler, C.W. Tu: Phys. Rev. B 34, 9027 (1986)
A. Honold, L. Schultheis, J. Kuhl, C.W. Tu: J. Opt. Soc. Am. B 4, 210 (1987)
T. Takagahara: Phys. Rev. B 32, 7013 (1985);
T. Takagahara: J. Lumin. 44, 347 (1989)
H.F. Hess, E. Betzig, T.D. Harris, L.N. Pfeiffer, K.W. West: Science 264, 1740 (1994)
K. Brunner, G. Abstreiter, G. Böhm, G. Trônkle, G. Weimann: Phys. Rev. Lett., 73, 1138 (1994)
D. Gammon, E.S. Snow, B.V. Shanabrook, D.S. Katzer, D. Park: Science 273, 87 (1996);
D. Gammon, E.S. Snow, B.V. Shanabrook, D.S. Katzer, D. Park: Phys. Rev. Lett. 76, 3005 (1996)
X. Fan, T. Takagahara, J.E. Cunningham, H. Wang: Solid State Commun. 108, 857 (1998)
K. Huang, A. Rhys: Proc. Roy. Soc. (London) A 204, 406 (1950)
C.B. Duke, G.D. Mahan: Phys. Rev. 139, A1965 (1965)
R. Kubo, Y. Toyozawa: Prog. Theor. Phys. 13, 160 (1955)
R.W. Schoenlein, D.M. Mittleman, J.J. Shiang, A.P. Alivisatos, C.V. Shank: Phys. Rev. Lett. 70, 1014 (1993)
T. Itoh, M. Furumiya: J. Lumin. 48–49, 704 (1991)
H. Benisty, CM. Sotomayor-Torres, C. Weisbuch: Phys. Rev. B 44, 10945 (1991)
U. Bockelmann: Phys. Rev. B 48, 17637 (1993)
T. Takagahara: J. Lumin. 70, 129 (1996);
T. Takagahara: Phys. Rev. Lett. 71, 3577 (1993), and references therein
A. Blacha, H. Presting, M. Cardona: Phys. Status Solidi B 126, 11 (1984)
Physics of Group IV Elements and III-V Compounds, Landolt-Börnstein, Vol. 17a, ed. by O. Madelung, M. Schulz, H. Weiss (Springer, Berlin 1982)
R. Kubo: In: Fluctuation, Relaxation and Resonance in Magnetic Systems, ed. by D. ter Haar, (Oliver and Boyd, Edinburgh 1962)
T. Takagahara, E. Hanamura, R. Kubo: J. Phys. Soc. Japan 43, 802, 811, 1522 (1977)
T. Takagahara: Phys. Rev. B 31, 6552 (1985)
T. Takagahara: Phys. Rev. B 47, 4569 (1993)
K. Takemoto, B.-R. Hyun, Y. Masumoto: Solid State Commun. 144, 521 (2000)
R. Kuribayashi, K. Inoue, K. Sakoda, V.A. Tsekhomskii, A.V. Baranov: Phys. Rev. B 57, R15084 (1998)
A.L. Efros, M. Rosen, M. Kuno, M. Nirmal, D.J. Norris, M. Bawendi: Phys. Rev. B 54, 4843 (1996); Detailed calculation was done here, including the electron-hole exchange interaction and the effect of non-spherical shape. The typical energy splitting is about 20 meV for a 20-É-radius spherical CdSe quantum dot
A.E.H. Love: A Treatise on the Mathematical Theory of Elasticity (Dover, New York 1944)
A. Tamura, K. Higeta, T. Ichinokawa: J. Phys. C 15, 4975 (1982)
T. Takagahara: Phys. Rev. B 60, 2638 (1999)
H. Gotoh, H. Ando, H. Kamada, A. Chavez-Pirson, J. Temmyo: Appl. Phys. Lett. 72, 1341 (1998)
N.H. Bonadeo, G. Chen, D. Gammon, D. Park, D.S. Katzer, D.G. Steel: Tech. Digest of Quantum Electronics and Laser Science Conf (QELS ’99, Baltimore 1999) QTuC5, p. 48
H. Kamada, H. Gotoh, H. Ando, J. Temmyo, T. Tamamura: Phys. Rev. B 60, 5791 (1999)
M. Ikezawa, Y. Masumoto: Phys. Rev. B 61, 12662 (2000)
See, for example, Dynamical Processes in Disordered Systems, Materials Science Forum Vol. 50, ed. by W.M. Yen (Trans Tech Publications, Switzerland 1989);
Optical Spectroscopy of Glasses, ed. by I. Zschokke (D. Reidel Publishing Company, Dordrecht 1986)
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Takagahara, T. (2002). Theory of Exciton Dephasing in Semiconductor Quantum Dots. In: Masumoto, Y., Takagahara, T. (eds) Semiconductor Quantum Dots. NanoScience and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-05001-9_9
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