Zobrazeno 1 - 10
of 75
pro vyhledávání: '"RAWAT, H. S."'
We report the results of in-situ characterization of $ ^{87}$Rb atom cloud in a quadrupole Ioffe configuration (QUIC) magnetic trap after radio frequency (RF) evaporative cooling of the trapped atom cloud. The in-situ absorption images of the atom cl
Externí odkaz:
http://arxiv.org/abs/1609.00800
Using a Direct Simulation Monte Carlo technique, we have studied the time evolution of a cold atom cloud interacting with a time dependent radio frequency (rf) dressed state potential. Exposure of a cloud of $^{87}Rb$ atoms, trapped in a quadrupole m
Externí odkaz:
http://arxiv.org/abs/1606.04302
We propose and demonstrate a laser frequency stabilization scheme which generates a dispersion-like tunable Doppler-free dichroic lock (TDFDL) signal. This signal offers a wide tuning range for lock point (i.e. zero-crossing) without compromising on
Externí odkaz:
http://arxiv.org/abs/1604.07619
We demonstrate the trapping of cold $^{87}Rb$ atoms in a toroidal geometry using a radio frequency (rf) dressed quadrupole magnetic trap formed by superposing a strong rf-field on a quadrupole trap. This rf-dressed quadrupole trap has the minimum pot
Externí odkaz:
http://arxiv.org/abs/1506.09047
We report electromagnetically induced absorption (EIA) resonances of sub-natural linewidth (FWHM) in metastable noble gas 83Kr* atoms using degenerate two level schemes (DTLSs). This is the first observation of EIA effect in a metastable noble gas at
Externí odkaz:
http://arxiv.org/abs/1506.06403
Narrow linewidth signals of Electromagnetically Induced Transparency (EIT) in the metastable 83Kr have been observed for the first time. Various hyperfine transitions in 4p55s[3/2]2 to 4p55p[5/2]3 manifolds of 83Kr have been identified through the ex
Externí odkaz:
http://arxiv.org/abs/1501.07381
Publikováno v:
JOSA B, Vol. 31, Issue 11, pp. 2531-2539 (2014)
We report a velocity selective bi-polarization spectroscopy (VS-BPS) technique to generate a background-free, dispersion-like reference signal which is tunable over a wide range of frequency. In this technique, a pair of linearly polarized weak probe
Externí odkaz:
http://arxiv.org/abs/1405.7477
We present studies on the modifications in temperature, number density and phase-space density when a laser cooled atom cloud from the optical molasses is trapped in a quadrupole magnetic trap. Theoretically it is shown that for a given temperature a
Externí odkaz:
http://arxiv.org/abs/1401.7165
We report electromagnetically induced transparency (EIT) in cold 85Rb atoms, trapped in the lower hyperfine level F = 2, of the ground state 5$^{2}S_{1/2}$ (Tiwari V B \textit{et al} 2008 {\it Phys. Rev.} A {\bf 78} 063421). Two steady state $\Lambda
Externí odkaz:
http://arxiv.org/abs/0912.0836
Autor:
Mishra, S. R., Rawat, H. S., Mehendale, S. C., Rustagi, K. C., Sood, A. K., Bandyopadhyay, Ranjini, Govindaraj, A., Rao, C. N. R.
Optical limiting behaviour of suspensions of single-walled carbon nanotubes in water, ethanol and ethylene glycol is reported. Experiments with 532 nm, 15 nsec duration laser pulses show that optical limiting occurs mainly due to nonlinear scattering
Externí odkaz:
http://arxiv.org/abs/cond-mat/0001067