https://doi.org/10.1140/epjd/e2011-10649-7
Regular Article
Tunneling-induced π-phase shift of a quantum-dot molecule coupled to a single-sided cavity
1
Wuhan National Laboratory for Optoelectronics and School of
Physics, Huazhong University of Science and Technology, Wuhan
430074, P.R.
China
2
School of Science, Hubei Province Key Laboratory of Intelligent
Robot, Wuhan Institute of Technology, Wuhan
430073, P.R.
China
a e-mail: aili@126.com
Received:
12
November
2010
Received in final form:
8
December
2010
Published online:
25
March
2011
We study optical dispersive properties of a combined system which is composed of a single-sided cavity with low quality factor Q and a quantum-dot molecule (QDM) embedded in cavity. It is shown that, with a voltage-controlled tunneling, an input signal after reflection from cavity experiences a π phase shift while not suffering from absorption in the experimentally available parameter range.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2011
