Optical vortex filtering for the detection of electromagnetically induced transparency

Phillips, Nathaniel B.; Romanov, G.; Ames, W.F.; Novikova, Irina

doi:10.1364/josab.28.002129

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2019

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“…In this paper, we consider the DB effect in the atomic medium and study the GHS in the RL. In our system, we consider an intracavity medium consisting of a double Λ system [31] in which DB arises from atom thermal motions with velocity v . A light beam incidents from the vacuum on a cavity, making an angle θ with the normal.…”

Section: Introductionmentioning

confidence: 99%

Giant negative and positive Goos–Hänchen shifts via Doppler broadening effect

et al. 2019

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The magnitude enhancement of the Goos-Hänchen shift (GHS) in reflected light (RL) is investigated. We consider a cavity in which a four-level atomic medium with a double lambda (Λ)-type configuration is contained. By changing the relative phase φ of optical fields in the four-level atomic configuration, we obtain normal and anomalous dispersions. Similarly, the manipulation of the positive and negative GHS in the RL is explored via the control of the relative phase. In addition, we investigated the GHS in the RL with and without the Doppler broadening (DB) effect. Interestingly, giant GHS in the RL is revealed for the DB medium. The role of the Doppler width on the magnitude of the GHS in RL is also studied. We find that the magnitude of the negative and positive GHS in the RL increased via increasing the Doppler width.

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Section: Introductionmentioning

confidence: 99%