&lt;title&gt;Laser system for EIT spectroscopy of cold Rb atoms&lt;/title&gt;

Kowalski, Krzysztof; Vaseva, K.; Gateva, S.; Głódź, M.; Petrov, L.; Szonert, J.

doi:10.1117/12.726894

Cited by 6 publications

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“…The experiment was performed in a gas of cold 85 Rb atoms which were cooled and trapped in a six-beam magneto-optical trap (MOT) built in our laboratory [46]. The setup for EIT measurements [47] is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

Simultaneous coupling of three hfs components in a cascade scheme of EIT in cold 85Rb atoms

Kowalski

Long

Viet

et al. 2009

Journal of Non-Crystalline Solids

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Section: Methodsmentioning

confidence: 99%

Simultaneous coupling of three hfs components in a cascade scheme of EIT in cold 85Rb atoms

Kowalski

Long

Viet

et al. 2009

Journal of Non-Crystalline Solids

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“…IV.2.2. The experimental work was performed in Warsaw by using the system described in our other paper of this issue [1], as well as in [61][62][63]. Section IV is partially based on references [63,64].…”

Section: Five-level Model For a Cascade Scheme Of Eit In Cold Atomentioning

confidence: 99%

Electromagnetically Induced Transparency

Kowalski

Long²,

Xuan³

et al. 2010

CMST

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Abstract:In the initial part of the paper, the principles of the electromagnetically induced transparency (EIT) in basic three-level schemes are sketched, and some applications of this phenomenon are described. Next a presentation follows of a five-level EIT model of Bloch equations, which was developed to reconstruct multipeak cascade-EIT spectra registered in a sample of cold 85 Rb atoms in MOT. The respective experiment is also described. The achieved good agreement between theory and performed experiment is documented and discussed.

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“…For imaging of an inhomogeneous atom cloud, an additional laser was used to modify the refractive index of the object. This "pump beam" was used to couple the upper transition in a cascade electromagnetically induced transparency scheme on the 5S 1/2 (F = 3) → 5P 3/2 (F = 3) → 5D 5/2 (F = 2, 3, 4) transitions [33,34]. Only a section of the cloud was illuminated with this beam, so that only part of the cloud exhibited EIT behavior.…”

Section: Imhomogeneous Imagingmentioning

confidence: 99%

Non-iterative imaging of inhomogeneous cold atom clouds using phase retrieval from a single diffraction measurement

et al. 2010

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We demonstrate a new imaging technique for cold atom clouds based on phase retrieval from a single diffraction measurement. Most single-shot diffractive imaging methods for cold atoms assume a monomorphic object to extract the column density. The method described here allows quantitative imaging of an inhomogeneous cloud, enabling recovery of either the atomic density or the refractive index, provided the other is known. Using ideas borrowed from density functional theory, we calculate the approximate paraxial diffracted intensity derivative from the measured diffracted intensity distribution and use it to solve the Transport of Intensity Equation (TIE) for the phase of the wave at the detector plane. Back-propagation to the object plane yields the object exit surface wave and then provides a quantitative measurement of either the atomic column density or refractive index. Images of homogeneous clouds showed good quantitative agreement with conventional techniques. An inhomogeneous cloud was created using a cascade electromagnetically induced transparency scheme and images of both phase and amplitude parts of refractive index across the cloud were separately retrieved, showing good agreement with theoretical results.

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<title>Laser system for EIT spectroscopy of cold Rb atoms</title>

Cited by 6 publications

References 0 publications

Simultaneous coupling of three hfs components in a cascade scheme of EIT in cold 85Rb atoms

Simultaneous coupling of three hfs components in a cascade scheme of EIT in cold 85Rb atoms

Electromagnetically Induced Transparency

Non-iterative imaging of inhomogeneous cold atom clouds using phase retrieval from a single diffraction measurement

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