Zobrazeno 1 - 10
of 288
pro vyhledávání: '"Natarajan, Vasant"'
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 53 (2020) 095001
In this paper, we present the spectroscopy of 6P$_{1/2}$ state in $^{87}$Rb using double resonance technique at $780~\text{nm}$ and $421~\text{nm}$. The double resonance technique is implemented using electromagnetically induced transparency (EIT) an
Externí odkaz:
http://arxiv.org/abs/2101.06452
We experimentally demonstrate electromagnetically induced absorption (EIA) in a vee + ladder system. The experiment is done using the low-lying energy levels of $^{87}$Rb. A theoretical model of the system is made that reproduces the experimental res
Externí odkaz:
http://arxiv.org/abs/2011.12670
We demonstrate laser interferometry based on phase difference between the two arms of the interferometer. The experiments are done with a Cs atomic vapor cell at room temperature and use atomic coherence. The interference can be tuned from constructi
Externí odkaz:
http://arxiv.org/abs/1908.10138
We demonstrate---experimentally and theoretically---that resonances obtained in electromagnetically induced transparency (EIT) can be both bright and dark. The experiments are done using magnetic sublevels of a hyperfine transition in the D$_1$ line
Externí odkaz:
http://arxiv.org/abs/1803.08746
Publikováno v:
Science and Culture, vol. 84 (9-10), pp. 344-347 (2018)
We use the technique of coherent population trapping (CPT) to access the ground hyperfine interval (clock transition) in $^{133}$Cs. The probe and control beams required for CPT are obtained from a single compact diode laser system. The phase coheren
Externí odkaz:
http://arxiv.org/abs/1710.10788
Publikováno v:
Scientific Reports 8:7525 (2018)
We demonstrate a technique for continuous tuning of the Hanle effect from electromagnetically induced transparency (EIT) to electromagnetically induced absorption (EIA) by changing the polarization ellipticity of a control beam. In contrast to previo
Externí odkaz:
http://arxiv.org/abs/1710.04378
We demonstrate a technique for obtaining the density of atomic vapor, by doing a fit of the resonant absorption spectrum to a density-matrix model. In order to demonstrate the usefulness of the technique, we apply it to absorption in the ${\rm D_2}$
Externí odkaz:
http://arxiv.org/abs/1706.04403
We demonstrate resonances due to coherent population pumping in a bright state (CBS), using magnetic sublevels of the closed $ F_g = 2 \rightarrow F_e = 3 $ transition in $^{87}$Rb. The experiments are performed at room temperature vapor in two kinds
Externí odkaz:
http://arxiv.org/abs/1706.04384
Autor:
Kumar, Pushpander, Natarajan, Vasant
We report a precise measurement of hyperfine structure in the $ \rm {3\,S_{1/2}} $ state of the odd isotope of Li, namely $ \rm {^7Li} $. The state is excited from the ground $ \rm {2\,S_{1/2}} $ state (which has the same parity) using two single-pho
Externí odkaz:
http://arxiv.org/abs/1703.03557