Controlling Goos-Hänchen shift in a negative-refractive-index quantum-dot nanostructure

The Goos-Hänchen (GH) shifts due to a negative refractive index in double quantum-dot nanostructures are discussed in reflected and transmitted light beams. It is realized that positive and negative GH shifts can be attained in the negative-refraction medium due to the presence of the indirect incoh...

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Bibliographic Details
Published inLaser physics Vol. 27; no. 8; pp. 85201 - 85206
Main Authors Jamshidnejad, M, Jabbari, M, Sangachin, Elnaz Ahmadi, Solookinejad, Gh
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.08.2017
Subjects
double quantum-dot nanostructure
Goos-Hänchen shift
refractive index
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Summary:The Goos-Hänchen (GH) shifts due to a negative refractive index in double quantum-dot nanostructures are discussed in reflected and transmitted light beams. It is realized that positive and negative GH shifts can be attained in the negative-refraction medium due to the presence of the indirect incoherent pumping field and electron tunneling. We found that the lateral shift at the fixed incident angle can be enhanced (positive or negative) under suitable conditions on the control field, without changing the structure of the cavity. We hope that our proposed configuration may be helpful for future all-optical sensor devices based on quantum-dot nanostructures.
Bibliography:2017LP00277
ISSN:1054-660X
1555-6611
DOI:10.1088/1555-6611/aa7a5f