Coherent control of group index and magneto-optical anisotropy in a multilevel atomic vapor

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Coherent control of group index and magneto-optical anisotropy in a multilevel atomic vapor. / Goldwin, Jonathan; Lampis, Andreas; Culver, Robert; Megyeri, Balázs.

In: Optics Express, Vol. 24, No. 14, 29.06.2016, p. 15494-15505.

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Goldwin, Jonathan ; Lampis, Andreas ; Culver, Robert ; Megyeri, Balázs. / Coherent control of group index and magneto-optical anisotropy in a multilevel atomic vapor. In: Optics Express. 2016 ; Vol. 24, No. 14. pp. 15494-15505.

Bibtex

@article{449f5a12a63745f2af3aec8c639bc03f,
title = "Coherent control of group index and magneto-optical anisotropy in a multilevel atomic vapor",
abstract = "We study electromagnetically induced transparency (EIT) in a heated potassium vapor cell, using a simple optical setup with a single free-running diode laser and an acousto-optic modulator. Despite the fact that the Doppler width is comparable to the ground state hyperfine splitting, transparency windows with deeply sub-natural line widths and large group indices are obtained. A longitudinal magnetic field is used to split the EIT feature and induce magneto-optical anisotropy. Using the beat note between co-propagating coupling and probe beams, we perform a heterodyne measurement of the circular dichroism (and therefore birefringence) of the EIT medium. The observed spectra reveal that lin‖lin polarizations lead to greater anisotropy than lin⊥lin. A simplified ‖analytical model encompassing sixteen Zeeman states and eighteen Λ subsytems reproduces the experimental observations.",
author = "Jonathan Goldwin and Andreas Lampis and Robert Culver and Bal{\'a}zs Megyeri",
year = "2016",
month = jun
day = "29",
doi = "10.1364/OE.24.015494",
language = "English",
volume = "24",
pages = "15494--15505",
journal = "Optics Express",
issn = "1094-4087",
publisher = "Optical Society of America",
number = "14",

}

RIS

TY - JOUR

T1 - Coherent control of group index and magneto-optical anisotropy in a multilevel atomic vapor

AU - Goldwin, Jonathan

AU - Lampis, Andreas

AU - Culver, Robert

AU - Megyeri, Balázs

PY - 2016/6/29

Y1 - 2016/6/29

N2 - We study electromagnetically induced transparency (EIT) in a heated potassium vapor cell, using a simple optical setup with a single free-running diode laser and an acousto-optic modulator. Despite the fact that the Doppler width is comparable to the ground state hyperfine splitting, transparency windows with deeply sub-natural line widths and large group indices are obtained. A longitudinal magnetic field is used to split the EIT feature and induce magneto-optical anisotropy. Using the beat note between co-propagating coupling and probe beams, we perform a heterodyne measurement of the circular dichroism (and therefore birefringence) of the EIT medium. The observed spectra reveal that lin‖lin polarizations lead to greater anisotropy than lin⊥lin. A simplified ‖analytical model encompassing sixteen Zeeman states and eighteen Λ subsytems reproduces the experimental observations.

AB - We study electromagnetically induced transparency (EIT) in a heated potassium vapor cell, using a simple optical setup with a single free-running diode laser and an acousto-optic modulator. Despite the fact that the Doppler width is comparable to the ground state hyperfine splitting, transparency windows with deeply sub-natural line widths and large group indices are obtained. A longitudinal magnetic field is used to split the EIT feature and induce magneto-optical anisotropy. Using the beat note between co-propagating coupling and probe beams, we perform a heterodyne measurement of the circular dichroism (and therefore birefringence) of the EIT medium. The observed spectra reveal that lin‖lin polarizations lead to greater anisotropy than lin⊥lin. A simplified ‖analytical model encompassing sixteen Zeeman states and eighteen Λ subsytems reproduces the experimental observations.

U2 - 10.1364/OE.24.015494

DO - 10.1364/OE.24.015494

M3 - Article

VL - 24

SP - 15494

EP - 15505

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 14

ER -