Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Ultrafast optical bleaching of intersubband cavity polaritons
AU - Zanotto, Simone
AU - Degl'Innocenti, Riccardo
AU - Xu, Ji Hua
AU - Sorba, Lucia
AU - Tredicucci, Alessandro
AU - Biasiol, Giorgio
PY - 2012/11/28
Y1 - 2012/11/28
N2 - We report on the transition from the strong to the weak light-matter coupling regime between an intersubband excitation and a photonic crystal resonance in a nanostructured semiconductor membrane. Such a transition is induced by varying the intensity of an ultrafast light pulse, which is employed for pumping and probing the system eigenmodes. The phenomenon is interpreted in terms of the saturation of the intersubband transition due to the large number of photoexcited electrons in the quantum well, as confirmed by a thorough analysis performed both in frequency and time domain.
AB - We report on the transition from the strong to the weak light-matter coupling regime between an intersubband excitation and a photonic crystal resonance in a nanostructured semiconductor membrane. Such a transition is induced by varying the intensity of an ultrafast light pulse, which is employed for pumping and probing the system eigenmodes. The phenomenon is interpreted in terms of the saturation of the intersubband transition due to the large number of photoexcited electrons in the quantum well, as confirmed by a thorough analysis performed both in frequency and time domain.
U2 - 10.1103/PhysRevB.86.201302
DO - 10.1103/PhysRevB.86.201302
M3 - Journal article
AN - SCOPUS:84870568779
VL - 86
JO - Physical review B
JF - Physical review B
SN - 1098-0121
IS - 20
M1 - 201302
ER -