Carrier trapping in a quantum dash: optical signatures
  We theoretically study the optical properties and the electronic structure of highly elongated quantum dots (quantum dashes) and show how geometrical fluctuations affect the excitonic spec- trum of the system. The dependence of the absorption intensities on the geometrical properties (depth and length) of the trapping center in a quantum dash is analyzed and the dependence of the degree of the linear polarization on these geometrical parameters is studied. 
Piotr Kaczmarkiewicz, Pawe{\l} Machnikowski, Tilmann Kuhn
cond-mat.mes-hall