Resonant scattering in semiconductor quantum dots under two-photon excitation

Ana Predojević

Raphaël Proux, Maria Maragkou, Emmanuel Baudin +3 more

Raphaël Proux, Maria Maragkou, Emmanuel Baudin +2 more

程木田, 叶根龙, 纵卫卫 +1 more

Mu-Tian Cheng, Ye Gen-Long, Zong Wei-Wei +1 more

The single photon scattering properties in a pair of waveguides coupled by a whispering-gallery resonator interacting with a semiconductor quantum dot are investigated theoretically. The two waveguides support four possible ports for an incident single photon. The quantum dot is considered a V-type system. The incident direction-dependent single photon scattering properties are studied and equal-output probability from the four ports for a single photon incident is discussed. The influences of backscattering between the two modes of the whispering-gallery resonator for incident direction-dependent single photon scattering properties are also presented.

Kwang Jun Ahn, Jens Förstner, A. Knorr

Using a fully quantized description of strongly confined electrons interacting with acoustic phonons and the photon field, the nonstationary resonance-fluorescence spectra of a semiconductor quantum dot are investigated. For excitation pulses with durations approaching typical electron-phonon scattering times, the virtual quantum processes yield an observable electron-phonon sideband broadening.