| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Birefringence via Doppler broadening and prevention of information hacking |
| Humayun Khan, Muhammad Haneef, Bakhtawar |
| Laborotary of Theoretical Physics, Department of Physics, Hazara University Mansehra, KP, Pakistan |
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Abstract We propose a new scheme for the coherent control of birefringent light pulses propagation in a four-level atomic medium. We modify the splitting of a light pulse by controlling the electric and magnetic responses. The Doppler broadening effect is also noted on the propagation of the birefringent pulses. The dispersions of the birefringence beams are oppositely manipulated for delay and advancement of time at a Doppler width of 10γ. A time gap is created between the birefringence beams, which protects from hacking of information. The time gap is then closed to restore the pulse into the original form by a reverse manipulation of the dispersion of the birefringence beams, i.e., introducing another medium whose transfer function is the complex conjugate of that of the original medium. The results are useful for secure communication technology.
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Received: 03 August 2017
Revised: 12 September 2017
Published: 05 January 2018
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Corresponding Authors:
Muhammad Haneef
E-mail: haneef.theoretician@gmail.com
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Cite this article:
Humayun Khan, Muhammad Haneef, Bakhtawar Birefringence via Doppler broadening and prevention of information hacking 2018 Chin. Phys. B 27 014201
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