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Rydberg interaction induced enhanced excitation in thermal atomic vapor
Dushmanta Kara, Arup Bhowmick, Ashok K. Mohapatra
We present the experimental demonstration of interaction induced enhancement in Rydberg excitation or Rydberg anti-blockade in thermal atomic vapor. We have used optical heterodyne…
High-sensitivity measurement of Rydberg population via two-photon excitation in atomic vapour using optical heterodyne detection technique
Arup Bhowmick, Dushmanta Kara, Ashok K. Mohapatra
We demonstrate a technique based on optical heterodyne detection to measure Rydberg population in thermal atomic vapour. The technique used a probe beam far off resonant to the D2…
Narrow absorptive resonances in a four-level atomic system
M. G. Bason, A. K. Mohapatra, K. J. Weatherill +1
We study the effect of a control beam on a Lambda electromagnetically induced transparency (EIT) system in 87Rb. The control beam couples one ground state to another excited state…
Laser frequency stabilization to highly excited state transitions using electromagnetically induced transparency in a cascade system
R. P. Abel, A. K. Mohapatra, M. G. Bason +4
We demonstrate laser frequency stabilization to excited state transitions using cascade electromagnetically induced transparency (EIT). Using a room temperature Rb vapor cell as a…
Giant electro-optic effect using polarizable dark states
A. K. Mohapatra, M. G. Bason, B. Butscher +2
The electro-optic effect, where the refractive index of a medium is modified by an electric field, is of central importance in non-linear optics, laser technology, quantum optics a…
Electro-optic control of atom-light interactions using Rydberg dark-state polaritons
M. G. Bason, A. K. Mohapatra, K. J. Weatherill +1
We demonstrate a multiphoton Rydberg dark resonance where a Lambda-system is coupled to a Rydberg state. This N-type level scheme combines the ability to slow and store light pulse…