Observation of the quantum interference phenomenon induced by interacting dark resonances

Y. C. Chen; Y. A. Liao; H. Y. Chiu; Jung-Jung Su; I. A. Yu

doi:10.1103/PhysRevA.64.053806

Observation of the quantum interference phenomenon induced by interacting dark resonances

Y. C. Chen^*, Y. A. Liao, H. Y. Chiu, Jung-Jung Su, I. A. Yu

^*Corresponding author for this work

Department of Electrophysics

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

Abstract

We report an experimental observation of narrow and high-contrast spectra, which are induced by interacting dark resonances and have been predicted in Phys. Rev. A 60, 3225 (1999). Spectra are measured with cold [Formula Presented] atoms produced by a magneto-optical trap. In this experimental system, a coupling laser and a weak probe laser form a three-level Λ-type configuration of electromagnetically induced transparency (EIT); a microwave drives a magnetic-dipole transition between the fourth level and the ground state that is coupled with the excited state by the coupling laser. The observed spectral profile of probe absorption exhibits a very sharp peak emerging inside a narrow EIT dip. Such spectral feature provides more opportunities in manipulating atomic-optical response.

Original language	English
Article number	053806
Pages (from-to)	1-5
Number of pages	5
Journal	Physical Review A. Atomic, Molecular, and Optical Physics
Volume	64
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.64.053806
State	Published - Nov 2001

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title = "Observation of the quantum interference phenomenon induced by interacting dark resonances",

abstract = "We report an experimental observation of narrow and high-contrast spectra, which are induced by interacting dark resonances and have been predicted in Phys. Rev. A 60, 3225 (1999). Spectra are measured with cold [Formula Presented] atoms produced by a magneto-optical trap. In this experimental system, a coupling laser and a weak probe laser form a three-level Λ-type configuration of electromagnetically induced transparency (EIT); a microwave drives a magnetic-dipole transition between the fourth level and the ground state that is coupled with the excited state by the coupling laser. The observed spectral profile of probe absorption exhibits a very sharp peak emerging inside a narrow EIT dip. Such spectral feature provides more opportunities in manipulating atomic-optical response.",

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AU - Chen, Y. C.

AU - Liao, Y. A.

AU - Chiu, H. Y.

AU - Su, Jung-Jung

AU - Yu, I. A.

PY - 2001/11

Y1 - 2001/11

N2 - We report an experimental observation of narrow and high-contrast spectra, which are induced by interacting dark resonances and have been predicted in Phys. Rev. A 60, 3225 (1999). Spectra are measured with cold [Formula Presented] atoms produced by a magneto-optical trap. In this experimental system, a coupling laser and a weak probe laser form a three-level Λ-type configuration of electromagnetically induced transparency (EIT); a microwave drives a magnetic-dipole transition between the fourth level and the ground state that is coupled with the excited state by the coupling laser. The observed spectral profile of probe absorption exhibits a very sharp peak emerging inside a narrow EIT dip. Such spectral feature provides more opportunities in manipulating atomic-optical response.

AB - We report an experimental observation of narrow and high-contrast spectra, which are induced by interacting dark resonances and have been predicted in Phys. Rev. A 60, 3225 (1999). Spectra are measured with cold [Formula Presented] atoms produced by a magneto-optical trap. In this experimental system, a coupling laser and a weak probe laser form a three-level Λ-type configuration of electromagnetically induced transparency (EIT); a microwave drives a magnetic-dipole transition between the fourth level and the ground state that is coupled with the excited state by the coupling laser. The observed spectral profile of probe absorption exhibits a very sharp peak emerging inside a narrow EIT dip. Such spectral feature provides more opportunities in manipulating atomic-optical response.

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