37 citations · 134 across the 11 of their papers we have counts for
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Narrowing of resonances in electromagnetically induced transparency and absorption using a Laguerre-Gaussian control beam
Sapam Ranjita Chanu, Vasant Natarajan
We study the phenomenon of electromagnetically induced transparency and absorption (EITA) using a control laser with a Laguerre-Gaussian (LG) profile instead of the usual Gaussian…
Chopped nonlinear magneto-optic rotation: a technique for precision measurements
Harish Ravishankar, Sapam Ranjita Chanu, Vasant Natarajan
We have developed a technique for precise measurement of small magnetic fields using nonlinear magneto-optic rotation (NMOR). The technique relies on the resonant laser beam being…
Subnatural linewidth in a strongly-driven closed transition
Sapam Ranjita Chanu, Alok K. Singh, Boris Brun +2
We observe linewidths below the natural linewidth for a probe laser on a {\it two-level system}, when the same transition is driven by a strong control laser. We take advantage of…