Tunneling Control of Transmission Coefficient and Group Index in a Quantum Dot Nanostructure | Zendy

Hamid Reza Hamedi | Zendy; Ali KhalediNasab | Zendy; Hossein Ghaforyan | Zendy

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Tunneling Control of Transmission Coefficient and Group Index in a Quantum Dot Nanostructure

Author(s) -

Hamid Reza Hamedi,

Ali KhalediNasab,

Hossein Ghaforyan

Publication year - 2014

Publication title -

advances in condensed matter physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.314

H-Index - 26

eISSN - 1687-8124

pISSN - 1687-8108

DOI - 10.1155/2014/589415

Subject(s) - quantum tunnelling , transmission coefficient , quantum dot , transmission (telecommunications) , condensed matter physics , coupling coefficient of resonators , coupling (piping) , physics , field (mathematics) , nanostructure , flexibility (engineering) , quantum , materials science , quantum mechanics , optoelectronics , statistics , mathematics , telecommunications , computer science , resonator , pure mathematics , metallurgy

We theoretically study the transmission and group index properties of the probe field in a four-level quantum dot molecule. It is found that the tunnel coupling plays a very important role in realizing the transmission coefficient of the probe field. Moreover, the impact of an incoherent pump field on imaginary part of susceptibility is investigated. We show that probe transmission exhibits oppositional behavior against weak and strong incoherent pump rates. This approach allows substantial flexibility in the manipulation of group velocity of light

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