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Coherent optical spectroscopy characterization of the magnetic properties of oriented Fe3O4 nanoparticles

Autor: E Taskova, E Alipieva, S Kolev, T Koutzarova, D Brazhnikov

Magnetite (Fe3O4) nanoparticles are widely used in microwave components, such as microwave absorbers and anti-reflection coatings. Their magnetic properties are important for these applications. In this work, the weak magnetic field created by the Fe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86572874a0fb7ddf3ce43d22f7cf9198
https://iopscience.iop.org/article/10.1088/1742-6596/2240/1/012022

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Nonlinear Magnetooptical Resonance in 87Rb Vapor: The Influence of Stray Magnetic Fields and Excitation Radiation Intensity on the Basic Characteristics of the Effect in Cells with Antirelaxation Coating

Autor: Tigran A. Vartanyan, E. Alipieva, G. Ts. Todorov, V. A. Polishchuk, E. Taskova

Publikováno v: Optics and Spectroscopy. 127:395-410

The nonlinear Hanle effect is generally considered in the modern literature as a particular case of coherent population trapping (CPT) at degenerate Zeeman sublevels of the ground atomic state. The shape, amplitude, and sign of observed resonances an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d71b7334bd9e2c8efa866c799883e09e
https://doi.org/10.1134/s0030400x19090042

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Nonlinear enhanced-absorption resonances in compact alkali-vapor cells for applications in quantum metrology

Autor: V. M. Entin, D. V. Brazhnikov, C. Andreeva, Mikhail N Skvortsov, S. Gateva, I. I. Ryabtsev, S. M. Ignatovich, I. S. Mesenzova, E. Taskova, A. M. Mikhailov, Rodolphe Boudot, Andrei Goncharov, E. Alipieva

Publikováno v: Journal of Physics: Conference Series (JPCS)
Journal of Physics: Conference Series (JPCS), 2021, 1859, pp.012019. ⟨10.1088/1742-6596/1859/1/012019⟩

We review three laser spectroscopy schemes developed recently for observation of high-contrast enhanced-absorption nonlinear resonances in small alkali-vapor cells. In our experiments, optical transitions within the cesium D1 line are involved and a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::564671da3c630dcfed13e1288f7110cf
https://hal.archives-ouvertes.fr/hal-03403169

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Electromagnetically induced absorption resonances in Hanle-configuration prepared in a paraffin coated 87Rb cell

Autor: E. Alipieva, E. Taskova, Ch. Andreeva, D Brazhnikov

We present an experimental investigation of electromagnetically-induced absorption (EIA) at the D1 line of 87Rb contained in an anti-relaxation coated vacuum optical cell. The configuration includes a pump and a probe beam propagating in opposite dir

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54aa71d2a91239e594cfa4799881cc4c

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Peculiarities of the nonlinear magneto-optical fluorescence resonances in a paraffin-coated 87Rb cell

Autor: G. Todorov, V. Polishchuk, E. Taskova, E. Alipieva

Publikováno v: AIP Conference Proceedings.

The ultra-narrow resonances, obtained in the coherent spectroscopy of alkali atoms, originate from the destruction of the laser-induced coherence in the ground state. In the case of a single frequency, near-resonant excitation and a suitable geometry

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::69cfa74ebc268065dccbc07c7d6d3ae8
https://doi.org/10.1063/1.5091157

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Dual-beam electromagnetically-induced absorption resonance in a 87Rb cell with antirelaxation coating

Autor: E Taskova, E Alipieva

Publikováno v: Journal of Physics: Conference Series. 1859:012025

Destruction of the laser-induced coherence in the ground state of alkali atoms manifests itself as an ultra-narrow resonance in the atomic spectrum. Depending on the geometry of irradiation and observation, the coherent spectroscopy studies CPT (cohe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa207b746f61f5890eca5b843bf60042
https://doi.org/10.1088/1742-6596/1859/1/012025

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Contribution of the polarization moments of different rank to the integral CPT signal

Autor: E. Taskova, G. Todorov, E. Alipieva

Publikováno v: SPIE Proceedings.

In the present work we investigate the relation of the polarization moments having different ranks with the tensor components which form the observable integral CPT signal, in the presence of a stray magnetic field. A numerical experiment with parame

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14251f7ec31950869c0660b4dab610f1
https://doi.org/10.1117/12.2261673

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