Chinese Optics Letters, 2019, 17 (3): 032701, Published Online: Mar. 8, 2019  

Space–time cloaks through birefringent Goos–Hänchen shifts

Author Affiliations
1 Laboratory of Theoretical Physics, Department of Physics, Hazara University Mansehra, 21300, Pakistan
2 Department of Physics, Women University Mardan, 23200, Pakistan
Abstract
We report a theoretical demonstration for the creation of space–time holes based on birefringence of reflection, transmission, and the Goos–H chen (GH) shifts from a chiral medium. We observed space–time holes in the reflection, transmission, and their corresponding GH-shifted beams. Two space–time holes are clearly detected in the regions of 0<t5τ0 and 5wy5w, as well as in the regions of 5τ0t0 and 5wy5w. These space–time holes hide objects and information contents from observers and hackers. The objects and information contents are completely undetectable, and thus events can be cloaked. The results of this paper have potential applications in the invisibility of drone technology and secure communication of information in telecom industries.

Humayun Khan, Muhammad Haneef, Bakhtawar. Space–time cloaks through birefringent Goos–Hänchen shifts[J]. Chinese Optics Letters, 2019, 17(3): 032701.

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