OSA Advanced Photonics Congress

Plasmonic structure induce giant Goos-Hänchen shifts in a four-level quantum system

Mohammad Bahador Najafi, Yashar Ghadiri

Published Jan 1, 2016• 0 citations

Abstract

Goss-Hänchen (GH) shifts due to its potential applications in geometrical optics has been proposed by Goos and Hänchen in 1974 [1]. There are many usages of GH shifts in optical measurement and sensing [2]. Infact, GH shifts are resulted from total reflection at the junction of the two medium due to lateraling shift in position of the reflected and transmitted lights [3]. Several theoretical and experimental configurations have been proposed for analyzing of GH shifts in reflected and transmitted lights [4, 5]. The GH shifts in most of those proposals have been occurred by changing the geometrical configurations of materials. These features make the mentioned studies have not suitable for applications in geometrical science. In this study, we propose a new model for manipulating the GH shifts in reflected and transmitted lights in a fixed configuration. We assume that the intracavity contains of four-level quantum system near a plasmonic nanostructure which located at distance d from quantum system. The optical features of quantum systems in the presence of some nanostructures have been discussed by many groups [6–8].

DOI: 10.1364/noma.2016.nom2c.4

Related papers

Controlling Goos–Hänchen shifts due to the surface plasmon effect in a hybrid system

Ghahraman Solookinejad, Masoud Jabbari, Mehdi Nafar +2 more

We have theoretically studied the Goos-Hänchen (GH) shifts of both the reflected and transmitted probe beams emerging from a cavity consisting of a hybrid system of a coupled quantum dot (QD) nanostructure and a metallic nanoparticle (MNP). It is realized that the GH shifts in the transmitted and reflected light beams can be enhanced due to the surface plasmon effect in the MNP. Also, it is shown that by adjusting the distance between QD and MNP and polarization control between probe field and major axis of the hybrid system, the simultaneous negative and positive GH shifts in reflected and transmitted light beams can occur. Moreover, the effects of the intensity and detuning of the coupling light on the GH shift properties of the reflected and transmitted lights have been discussed. We have found that under different parametric conditions of the hybrid system, the GH shifts of the reflected and transmitted light beams can be adjusted by tuning the intensity and controlling the detuning of the coupling field. The results show that our proposed model may be used for future optical sensor devices based on MNP hybrid systems.

Applied OpticsSep 24, 201816 citations

Coherent control of the Goos-Hanchen shift

Ziauddin, Qamar S., Sajid Qamar, Muhammad Suhail Zubairy

The behavior of the Goos-Hanchen (GH) shifts in the reflected and transmitted light beam which is incident on a cavity containing an intracavity medium of three-level or four-level atoms with electromagnetically induced transparency (EIT) is discussed. We report a coherent control of the GH shift in a fixed configuration or device via superluminal and subluminal wave propagation. For superluminal wave propagation, we observe negative GH shifts in the reflected part of the incident light whereas the shifts are positive in the transmitted light beam. This corresponds to the negative group index of the cavity in the former case and positive group index of the cavity in the latter. For subluminal wave propagation, the behavior of the GH shifts in the reflected light changes and positive shifts appear

Jan 1, 2010144 citations

Coherent control of the Goos-Hänchen shift

Ziauddin Ziauddin, Sajid Qamar, Muhammad Suhail Zubairy

The behavior of the Goos-H\"anchen (GH) shifts in the reflected and transmitted light beam which is incident on a cavity containing an intracavity medium of three-level or four-level atoms with electromagnetically induced transparency (EIT) is discussed. We report a coherent control of the GH shift in a fixed configuration or device via superluminal and subluminal wave propagation. For superluminal wave propagation, we observe negative GH shifts in the reflected part of the incident light whereas the shifts are positive in the transmitted light beam. This corresponds to the negative group index of the cavity in the former case and positive group index of the cavity in the latter. For subluminal wave propagation, the behavior of the GH shifts in the reflected light changes and positive shifts appear; however, the GH shifts in the transmitted light remains positive. The corresponding group index of the cavity is positive in both cases.

Physical Review AFeb 22, 201019 citations

Incoherent control of Goos–Hänchen shifts in a four-level InGaN/GaN quantum dot nanostructure

Ghahraman Solookinejad, M. Panahi, Elnaz Ahmadi Sangachin +1 more

Abstract In this paper, we propose a new configuration for manipulating Goos–Hänchen (GH) shifts in reflected and transmitted probe beams in a fixed geometrical scheme with a confined four-level InGaN/GaN quantum dot nanostructure. Here, the four-level quantum dot nanostructure is driven by a weak probe light, a coherent coupling field, and two broadband polarized fields that serve as the incoherent pumping fields. We theoretically show that by modulation of the external coupling field, incoherent pumping rates, and detuning of the probe light, the GH shifts in the reflected and transmitted probe light can be controlled. Our results show that enhanced GH shifts of reflected and transmitted probe beams can be obtained by simultaneous use of incoherent pumping rates and detuning of the probe light. Moreover, we find that the GH shifts in both reflected and transmitted probe beams can be negative or positive at certain angles of the incident probe field. Thus, these results may provide some new possibilities for technological applications in all-optical systems based on nanostructure devices.

Laser PhysicsMar 10, 20161 citation

Coherent Control of the Goos—Hänchen Shifts in a Four-Level N Type Atomic Medium

Parisa Maboodi, Soheila Hemmatzadeh Saeedabad, Seyyed Hossein Asadpour +1 more

The behavior of the Goos—Hänchen (GH) shifts of the reflected and transmitted probe light beams is theoretically investigated. In a fixed geometrical configuration, the effect of quantum interference induced by spontaneous emission on the phase control of the GH shifts is analyzed in this paper. It is found that in a four-level N-type atomic system as an intracavity medium, the GH shifts of the reflected and transmitted probe light beam are completely phase dependent.

Communications in Theoretical PhysicsDec 1, 20147 citations

Phase control of optical Goos–Hänchen shifts in a quantum dot nanostructure via high refractive index

Ali Raheli, Sarkew Salah Abdulkareem, Basim Al-Qargholi

Abstract We proposed a model for adjusting Goos–Hänchen (GH) shifts in a cavity with quantum dot (QD) nanostructure in this letter. The actual component of the susceptibility was studied by analytical solution of the coherence term of the density matrix elements, and the refractive index of the QD nanostructure was explored. We discovered that the intracavity medium became phase sensitive because of the electron tunneling action. As a result, the relative phase of applied lights may be used to manipulate the medium’s refraction index. The GH shifts in reflected and transmitted light beams in high refractive index QD nanostructures with diminishing probe absorption were next examined. We discovered that the GH shifts of reflected and transmitted lights are greatly influenced by the applied lights’ relative phase. We established that greater negative or positive GH shifts in reflected and transmitted photons are conceivable in the presence of electron tunneling.

Laser PhysicsJun 30, 20220 citations