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Your search keyword '"Velichansky, V. L."' showing total 9 results
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9 results on '"Velichansky, V. L."'

6. Shape of the signal of double radio-optical resonance in 85Rb atomic vapors in strong fields.

Author

Zibrov, A. S., Zhukov, A. A., Yakovlev, V. P., and Velichansky, V. L.

Subjects
OPTICAL resonance, RADIO frequency, LUMINESCENCE, QUANTUM optics, ELECTRIC equipment, SOLID state physics
Abstract

A transmission peak has been experimentally observed in the center of the signal of double radio-optical resonance in rubidium atomic vapors at the hyperfine splitting frequency of the ground state. It has been shown that this structure appears due to the Doppler detuning of the optical field and the corresponding optical shift of the microwave field. An analytical expression has been obtained for the shape of this resonance and the effect has been qualitatively explained. [ABSTRACT FROM AUTHOR]

Published
2006
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7. Experimental Investigation of the Dark Pseudoresonance on the D1 Line of the 87Rb Atom Excited by a Linearly Polarized Field.

Author

Zibrov, S. A., Velichansky, V. L., Zibrov, A. S., Taĭchenachev, A. V., and Yudin, V. I.

Subjects
*RESONANCE, *ATOMIC frequency standards, *ELECTRONIC excitation, *ELECTROMAGNETISM, *MAGNETIC fields
Abstract

The measurements of the metrological characteristics (amplitude, width, and shift in the magnetic field) of the dark pseudoresonance, which was proposed by Kazakov etal. [quant-ph/0506167] as the reference resonance for an atomic frequency standard, are reported. It has been shown that the characteristics of the pseudoresonance are worse than those of the unsplit electromagnetically induced transparency resonance for the excitation scheme with the lin || lin polarization on the D1 line of the 87Rb atom. © 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]

Published
2005
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8. On the Unique Possibility of Significantly Increasing the Contrast of Dark Resonances on the D1 Line of 87Rb.

Author

Taichenachev, A. V., Yudin, V. I., Velichansky, V. L., and Zibrov, S. A.

Subjects
ELECTROMAGNETIC fields, RESONANCE, ALKALIES, BICHROMATIC harmonium, OPTICAL polarization, QUANTUM theory
Abstract

We propose and study, theoretically and experimentally, a new scheme of excitation of a coherent population trapping resonance for the D1 line of alkali atoms with nuclear spin I = 3/2 by bichromatic linearly polarized light (lin||lin field) under the conditions of spectral resolution of the excited state. The unique properties of this scheme result in a high contrast of dark resonance for the D1 line of 87Rb. © 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]

Published
2005
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9. High-Contrast Dark Resonances on the D1 Line of Alkali Metals in the Field of Counterpropagating Waves.

Author

Ta&icaron;;chenachev, A. V., Yudin, V. I., Velichansky, V. L., Kargapoltsev, S. V., Wynands, R., Kitching, J., and Hollberg, L.

Subjects
MAGNETIC resonance, AMPLITUDE modulation, ALKALI metals, WAVES (Physics), POLARIZATION (Nuclear physics), STANDING waves, NUMERICAL analysis
Abstract

A new method providing a significant increase in the amplitude and contrast of dark resonances is proposed. The method is based on the use of the σ+–σ– configuration of polarized counterpropagating waves, D1-line excitation in alkali metal atoms, and small-sized cells. Qualitative considerations of the scheme are confirmed by the results of numerical calculations. A variant of a standing wave with homogeneous circular polarization is also discussed. © 2004 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]

Published
2004
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