Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Yashchuk, V. P."'
Publikováno v:
has been published in Laser Physics, 28(4):045801, 2018
Dye-doped hybrid silicate/titanium nanofilms on the glass substrate in the structure of asymmetrical waveguides were studied as the laser system. The spatial and spectral features of laser oscillation of genuine and hollow waveguides were determined.
Externí odkaz:
http://arxiv.org/abs/1808.02567
Publikováno v:
Ukr.J.Phys., 2011, v.56, N2, p.524-533
We study the interaction of berberine and sanguinarine (plant alkaloids) with DNA in aqueous solutions, by using optical spectroscopy methods (absorption and fluorescence). The dependencies of alkaloid spectral characteristics on the concentration ra
Externí odkaz:
http://arxiv.org/abs/1201.2579
Publikováno v:
Ukrainian Journal of Physics, 2011, v.56, No.2, pp.130-137
Experimental vibrational spectra (Raman and infrared absorption) of berberine are obtained at room temperature. The vibrational spectra of berberine are calculated by the DFT method at the B3LYP/6-311++G(d,p) level. Based on the correlation between e
Externí odkaz:
http://arxiv.org/abs/1103.4290
The random lasing (RL) emission of dyed vesicular polymeric films in diffusive regime of light propagation was investigated under helium temperature. It represents itself the coupling effect of stimulated emission and stimulated Raman scattering (SRS
Externí odkaz:
http://arxiv.org/abs/1008.4511
Autor:
Seltzer, S. J., Michalak, D. J., Donaldson, M. H., Balabas, M. V., Barber, S. K., Bernasek, S. L., Bouchiat, M. -A., Hexemer, A., Hibberd, A. M., Kimball, D. F. Jackson, Jaye, C., Karaulanov, T., Narducci, F. A., Rangwala, S. A., Robinson, H. G., Shmakov, A. K., Voronov, D. L., Yashchuk, V. V., Pines, A., Budker, D.
Publikováno v:
Journal of Chemical Physics 133, 144703 (2010)
Many technologies based on cells containing alkali-metal atomic vapor benefit from the use of anti-relaxation surface coatings in order to preserve atomic spin polarization. In particular, paraffin has been used for this purpose for several decades a
Externí odkaz:
http://arxiv.org/abs/1002.4417
Using Bose-Einstein-statistics-forbidden two-photon excitation in atomic barium, we have limited the rate of statistics-violating transitions, as a fraction $\nu$ of an equivalent statistics-allowed transition rate, to $\nu<4.0\times10^{-11}$ at the
Externí odkaz:
http://arxiv.org/abs/1001.1771
Publikováno v:
Phys. Rev. A 81, 032114 (2010)
We present a detailed description of the observation of parity violation in the 1S0-3D1 408-nm forbidden transition of ytterbium, a brief report of which appeared earlier. Linearly polarized 408-nm light interacts with Yb atoms in crossed E- and B-fi
Externí odkaz:
http://arxiv.org/abs/1001.0587
Publikováno v:
Phys. Rev. Lett. 103, 071601 (2009)
Atomic parity violation has been observed in the 6s^2 1S0 - 5d6s 3D1 408-nm forbidden transition of ytterbium. The parity-violating amplitude is found to be two orders of magnitude larger than in cesium, where the most precise experiments to date hav
Externí odkaz:
http://arxiv.org/abs/0906.3039
Autor:
Kimball, D. F. Jackson, Nguyen, Khoa, Ravi, K., Sharma, Arijit, Prabhudesai, Vaibhav S., Rangwala, S. A., Yashchuk, V. V., Balabas, M. V., Budker, D.
Publikováno v:
Phys. Rev. A 79, 032901 (2009).
Alkali vapor cells with antirelaxation coating (especially paraffin-coated cells) have been a central tool in optical pumping and atomic spectroscopy experiments for 50 years. We have discovered a dramatic change of the alkali vapor density in a para
Externí odkaz:
http://arxiv.org/abs/0812.4959
Autor:
Leefer, N. A., Cingöz, A., Budker, D., Ferrell, S. J., Yashchuk, V. V., Lapierre, A., Nguyen, A. -T, Lamoreaux, S. K., Torgerson, J. R.
Radio-frequency electric-dipole transitions between nearly degenerate, opposite parity levels of atomic dysprosium (Dy) were monitored over an eight-month period to search for a variation in the fine-structure constant, $\alpha$. The data provide a r
Externí odkaz:
http://arxiv.org/abs/0811.3992