Optical cloaking using alternate Raman gain and free-space media in the presence of spatially distributed pump fields

Published

October 22, 2013

Author(s)

Chengjie Zhu, Lu Deng, Edward W. Hagley, Mo-Lin Ge

Abstract

We discuss an optical "cloaking" scheme using three-level active Raman gain media in tandem in the presence of a spatially distributed pump field. Using eikonal approximation we first derive analytically the deflection angle and show that the trajectory of light can be controlled dynamically using a spatially distributed pump.We further show an excellent agreement of analytical results with a full numerical calculation of the Maxwell equation for the probe field propagating across regions where an object is embedded. Our results show that the probe light travels around the object under detection, achieving the desired spatial cloaking of the object.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

88

Issue

(4)

Pub Type

Journals

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DOI Link

Keywords

optical "cloaking", wave propagation, eikonal approximation

Citation

Zhu, C. , Deng, L. , Hagley, E. and Ge, M. (2013), Optical cloaking using alternate Raman gain and free-space media in the presence of spatially distributed pump fields, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://doi.org/10.1103/PhysRevA.88.045804 (Accessed October 9, 2025)