Article 2022 · 1 atıf

Incoherent control of Goos-Hanchen shifts in a tunneling quantum dot molecule

Özet

In this letter, we propose a novel model for adjusting the Goos-Hanchen shifts (GH) from a fixed cavity. A three-level double quantum dot (QD) molecule is doped in the cavity, which interacts with a probe laser field and an incoherent pumping rate. We initially investigate the refraction index of double QDs utilizing the quantum mechanical density matrix approach in order to achieve negative and positive refractive indexes. The GH shifts of reflected and transmitted light beams in positive and negative refraction indices of the intracavity medium were then studied. The improved negative or positive GH shifts in reflected and transmitted light beams may be accomplished by changing the incoherent pumping rate and tunneling effect. Our findings reveal that the magnitude of the GH shifts is greatly influenced by the absorption of incoming probing light in double QDs. The enormous GH shifts for the perfect tuning cavity have been seen at a given incidence angle.

Anahtar Kelimeler

double quantum dots nanostructure Goos-Hanchen shift negative refractive index OPTICAL BISTABILITY KERR NONLINEARITY ENHANCEMENT SLAB

WoS Kategorileri

Optics Physics, Applied

Künye

Dergi: LASER PHYSICS LETTERS
Yıl: 2022
Cilt: 19
Sayı: 5
ISSN: 1612-2011
eISSN: 1612-202X
DOI: 10.1088/1612-202X/ac6037
WoS UID: WOS:000777828300001

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