期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 54, 期 17, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/abe0de
关键词
magneto-optical rotation; quantum system; surface plasmons polaritons
This study investigates the magneto-optical rotation of surface plasmon polaritons at the interface of a metal and a four-level atomic system, finding that the external magnetic field plays a vital role in controlling the magneto-optical rotation. When the magnetic field or the probe field is tuned to resonance, the magneto-optical rotation stops completely.
We investigate magneto-optical rotation (MOR) of surface plasmon polaritons (SPPs) at the interface of a metal and a four-level atomic system. The MOR of SPPs can be controlled and modified with the intensity and frequency of the applied fields. We show the birefringence enhancement of the weak probe fields propagating through the atomic medium in the presence of the static magnetic field. The external magnetic field has a vital role in the generation and control over the MOR of SPPs. The MOR completely stops when either the external magnetic field or the probe field or both are tuned to resonance. A pretty behavior of MOR of SPPs is observed for a specific set of control field frequency. The enhanced MOR of SPP has significant applications in atomic spectroscopy, optical communication, nano-photonics, optical switches, and precise measurement.
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