14 citations · 39 across the 8 of their papers we have counts for
8 papers
Development of a pyramidal magneto-optical trap for pressure sensing application
S. Supakar, Vivek Singh, Y. Pavan Kumar +5
Here, we report the development and working of a compact rubidium (Rb) atom magneto-optical trap (MOT) operated with a hollow pyramidal mirror and a single laser beam. This type of…
Efficient quantum state preparation using Stern-Gerlach effect on cold atoms
Vivek Singh, V. B. Tiwari, S. R. Mishra
The Zeeman hyperfine state dependent force in a Stern-Gerlach (SG) experiment has been exploited to separate and detect atoms having different Zeeman hyperfine states in a cold ato…
Different atom trapping geometries with time averaged adiabatic potentials
Sourabh Sarkar, S. P. Ram, V. B. Tiwari +1
In this article, we have theoretically studied the time averaged adiabatic potential (TAAP) scheme for realizing different atom trapping geometries. It is shown that by varying tim…
Effect of AC-Stark shift in optical dipole trap on absorption imaging of trapped atoms
K Bhardwaj, S P Ram, S Singh +2
In the present work, the effect of AC-Stark shift (i.e. light-shift) in optical dipole trap on in-situ absorption probe imaging of the trapped atoms has been investigated. We have…
Investigation of a Rb Dark Magneto-Optical Trap using an Optical Nanofibre
L. Russell, R. Kumar, V. B. Tiwari +1
We report here measurements on a dark magneto-optical trap (DMOT) of Rb atoms using an optical nanofibre (ONF) with a waist of ~1 m. The DMOT is created using a dou…
Measurements on release-recapture of cold Rb-85 atoms using an optical nanofibre in a magneto-optical trap
L. Russell, R. Kumar, V. B. Tiwari +1
We have performed release-recapture temperature measurements of laser-cooled Rb-85 atoms using an optical nanofibre (ONF) in a magneto-optical trap (MOT). The effects of changing t…
Observation of Zeeman shift in the rubidium D2 line using an optical nanofiber in vapor
Amy Watkins, Vibhuti Bhushan Tiwari, Jonathan M. Ward +1
We report on the observation of a Zeeman shift (order of 100 MHz) of the Doppler-broadened D2 transition of both 85Rb and 87Rb isotopes via transmission through a tapered optical n…
Electromagnetically induced transparency in cold 85Rb atoms trapped in the ground hyperfine F = 2 state
V. B. Tiwari, S. Singh, H. S. Rawat +2
We report electromagnetically induced transparency (EIT) in cold 85Rb atoms, trapped in the lower hyperfine level F = 2, of the ground state 5 (Tiwari V B \textit{et a…