Giant Goos–Hänchen shift via spontaneous generated coherence

Abstract

The influence of spontaneous generated coherence (SGC) on the Goos-Hänchen (GH) shift in the reflected light is presented. A weak probe light is incident on a cavity containing three-level gaseous atomic medium consist of 85 Rb atoms. The atom-field interaction follows electromagnetically induced transparency configuration, and the SGC modifies the dispersion and absorption properties of a system [Y. Niu and S. Gong, Phys. Rev. A 73, 053811 (2006)]. The SGC enhances the Kerr nonlinearity which leads to giant negative and positive GH shifts in the reflected light. Further, the control of negative and positive GH shifts is achieved via manipulation of probe field detuning.

Enhancement of Goos–Hänchen shifts due to spontaneously generated coherence in a four-level Rydberg atom

“…GH shifts have potential roles in micro and nano optics, and quantum and plasma physics [8,9]. GH shifts have been studied in many structures via different mechanisms [4,[10][11][12][13][14][15][16][17][18][19][20][21]. Jiang et al [5] studied electrically tunable GH shifts of reflected light beams from a graphene-dielectric surface near the Brewster angle.…”

Phase manipulation of Goos–Hänchen shifts in a single-layer of graphene nanostructure under strong magnetic field

“…This phenomenon has been named as the Goos-Hänchen shift (GH shift) and was first observed in 1974. The properties of GH shifts in many configurations have been discussed by many research groups [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. For example, GH shifts and Imbert-Fedorov (IF) shifts for bounded wavepackets of light have been discussed by Ornigotti and Aiello [26].…”

“…The properties of GH shifts in reflected and transmitted light beams from a cavity have been discussed by controlling the Fano interference in multiple quantum well nanostructures, which is considered as an intracavity medium [30]. The effect of spontaneously generated coherence (SGC) has also been discussed for GH shifts in reflected light from a cavity [33]. It has been realized that due to the modification of the absorption and dispersion properties of the intracavity medium, a negative and positive GH shift can be achieved.…”

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

“…The GH shifts in the reflected and transmitted light beam from a fixed cavity consisting of semiconductor nanostructures have been analyzed using different controllable parameters such as detuning, intensity of the control field, and electron tunneling [28]. Moreover, the features of GH shifts in reflected and transmitted light beams in various multi-level atomic systems with different configurations have been discussed by many groups [29][30][31][32][33][34]. To the best of our knowledge, GH shifts in reflected and transmitted light beams from a fixed cavity with negative-refractive-index QD nanostructure have not been reported yet.…”