Phys. Rev. B 59, 5069–5073 (1999)Phonon bottleneck in quantum dots: Role of lifetime of the confined optical phononsReceived 9 March 1998; revised 28 September 1998; published in the issue dated 15 February 1999 The phonon bottleneck in quantum dots is reexamined theoretically within the intrinsic phonon scattering mechanism. In the coupled-mode-equation formalism, an analytical solution is derived for the carrier relaxation. The result shows that, due to the anharmonic coupling of the confined LO phonon to the bulk acoustic phonons, the carrier relaxation rate is higher than 1010s-1 in a wide detuning range of tens of meV around the LO phonon energy, which differs remarkably from the original phonon bottleneck prediction. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.59.5069
DOI:
10.1103/PhysRevB.59.5069
PACS:
78.66.Fd, 73.20.Dx
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