Details
| Original language | English |
|---|---|
| Pages (from-to) | 5295-5298 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 43 |
| Issue number | 21 |
| Early online date | 23 Oct 2018 |
| Publication status | Published - 1 Nov 2018 |
| Externally published | Yes |
Abstract
Keywords
- Dispersion, Light beams, Magnetic fields, Optical activity, Polarized light, Quantum optics
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics Letters, Vol. 43, No. 21, 01.11.2018, p. 5295-5298.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - How anomalous is my Faraday filter?
AU - Gerhardt, Ilja
N1 - Funding information: Deutsche Forschungsgemeinschaft (DFG) (GE 2737/5-1). Dr. I. Hughes, Dr. M. Zentile, and Dr. J. Keaveney are acknowledged for fruitful discussions. Dr. J. Wrachtrup is acknowledged for continuous support.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - The Macaluso-Corbino effect describes the optical rotation of light in the spectral proximity to an atomic resonance. One use of this effect is narrowband optical filtering. So-called Faraday filters utilize the difference of the two components of the refractive indices, which are split by the Zeeman effect in a longitudinal magnetic field. This allows for a net rotation of a linearly polarized input beam within the medium. Placing it between crossed polarizers therefore only allows light near resonance to pass. Since any resonant spectrum implies anomalous dispersion on resonance, these filters are often characterized as being based on this anomalous dispersion. This Letter analyses to what extent the anomalous dispersion and the anomalous rotation are relevant for Faraday filters. Considering the sign of the anomalous rotation introduces a strict criterion if the filter is operated in the line center or in the spectral wing of an atomic resonance.
AB - The Macaluso-Corbino effect describes the optical rotation of light in the spectral proximity to an atomic resonance. One use of this effect is narrowband optical filtering. So-called Faraday filters utilize the difference of the two components of the refractive indices, which are split by the Zeeman effect in a longitudinal magnetic field. This allows for a net rotation of a linearly polarized input beam within the medium. Placing it between crossed polarizers therefore only allows light near resonance to pass. Since any resonant spectrum implies anomalous dispersion on resonance, these filters are often characterized as being based on this anomalous dispersion. This Letter analyses to what extent the anomalous dispersion and the anomalous rotation are relevant for Faraday filters. Considering the sign of the anomalous rotation introduces a strict criterion if the filter is operated in the line center or in the spectral wing of an atomic resonance.
KW - Dispersion
KW - Light beams
KW - Magnetic fields
KW - Optical activity
KW - Polarized light
KW - Quantum optics
UR - http://www.scopus.com/inward/record.url?scp=85056095612&partnerID=8YFLogxK
U2 - 10.1364/ol.43.005295
DO - 10.1364/ol.43.005295
M3 - Article
VL - 43
SP - 5295
EP - 5298
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 21
ER -