Conduction-band Nonparabolicity Effects on Inter-Subband Absorption in Quantum-well Wires

Abstract

The effects of conduction-band nonparabolicity on the inter-subband absorption in quantum-well wire structures are studied. The nonparabolicity is found to shift the absorption peak to lower energies, broaden it, and reduce its amplitude. The effects are stronger for In_0·53Ga_0·47As quantum wire structures than those for GaAs structures.

Indexing terms:

• PACS
• 78.65-s, 78.65. Fa. (Low-dimensional systems)