Transient Optics and Plasmonics
d by the electron (S= +1/2, −1/2) and hole (J= +3/2, −3/2) spin projections, respectively. The selection rules for optical transitions allow the coupling of the ±1/2 and ±3/2 states, respectively. An [...] inaccessible (e.g. S=−1/2, J=+3/2 - called dark coherence ) and back with Larmor precession frequency. This results in an oscillatory behavior of the photon echo. © Ilya Akimov/TU Dortmund 2. Spin interactions [...] t=0 induces a coherent superposition of optically accessible electron and trion states (e.g. S=+1/2, J=+3/2 - called optical coherence ). It leads to Larmor precession of the electron spin in the ground state …
