Abstract
We investigate an all-optical, pump-probe scheme for the polarization rotation of linearly polarized light in an atomic medium. A circularly polarized control light is shown to play the role of a static magnetic field via a Zeeman-like ac Stark interaction and to induce the optical Faraday rotation (OFR) of the probe light. As a model system, we consider a stationary atom with \par\parnS-nP-nD\par\par level scheme without electronic or nuclear spin. In addition to OFR, we find that electromagnetically induced transparency for the three-level atom and circular dichroism also contribute to the polarization change. We characterize these three effects over different frequency ranges through an explicit calculation of the fractional transmission and the output polarization of the probe light. Our results are compared with the \par\parnS-nP-\par(n+1)\parS\par\par scheme, which has been previously studied both theoretically and experimentally. We also compare the optically induced Faraday effect with the Faraday effect from a static magnetic field. We propose an experimental situation to test the theory and address the possibility of producing an atomic medium that is both optically active and transparent.
| Original language | English |
|---|---|
| Article number | 023821 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 72 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2005 Aug 1 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
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Optically induced Faraday effect using three-level atoms. / Cho, Donghyun; Choi, Jai Min; Kim, Jang Myun; Park, Q Han.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 72, No. 2, 023821, 01.08.2005.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Optically induced Faraday effect using three-level atoms
AU - Cho, Donghyun
AU - Choi, Jai Min
AU - Kim, Jang Myun
AU - Park, Q Han
PY - 2005/8/1
Y1 - 2005/8/1
N2 - We investigate an all-optical, pump-probe scheme for the polarization rotation of linearly polarized light in an atomic medium. A circularly polarized control light is shown to play the role of a static magnetic field via a Zeeman-like ac Stark interaction and to induce the optical Faraday rotation (OFR) of the probe light. As a model system, we consider a stationary atom with \par\parnS-nP-nD\par\par level scheme without electronic or nuclear spin. In addition to OFR, we find that electromagnetically induced transparency for the three-level atom and circular dichroism also contribute to the polarization change. We characterize these three effects over different frequency ranges through an explicit calculation of the fractional transmission and the output polarization of the probe light. Our results are compared with the \par\parnS-nP-\par(n+1)\parS\par\par scheme, which has been previously studied both theoretically and experimentally. We also compare the optically induced Faraday effect with the Faraday effect from a static magnetic field. We propose an experimental situation to test the theory and address the possibility of producing an atomic medium that is both optically active and transparent.
AB - We investigate an all-optical, pump-probe scheme for the polarization rotation of linearly polarized light in an atomic medium. A circularly polarized control light is shown to play the role of a static magnetic field via a Zeeman-like ac Stark interaction and to induce the optical Faraday rotation (OFR) of the probe light. As a model system, we consider a stationary atom with \par\parnS-nP-nD\par\par level scheme without electronic or nuclear spin. In addition to OFR, we find that electromagnetically induced transparency for the three-level atom and circular dichroism also contribute to the polarization change. We characterize these three effects over different frequency ranges through an explicit calculation of the fractional transmission and the output polarization of the probe light. Our results are compared with the \par\parnS-nP-\par(n+1)\parS\par\par scheme, which has been previously studied both theoretically and experimentally. We also compare the optically induced Faraday effect with the Faraday effect from a static magnetic field. We propose an experimental situation to test the theory and address the possibility of producing an atomic medium that is both optically active and transparent.
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U2 - 10.1103/PhysRevA.72.023821
DO - 10.1103/PhysRevA.72.023821
M3 - Article
VL - 72
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 2
M1 - 023821
ER -