Ravinder Chutani

TL;DR: In this paper, the dark line resonances observed in Cs vapor microcells filled with a unique neon buffer gas were characterized and the impact on the coherent population trapping (CPT) resonance of some critical external parameters such as laser intensity, cell temperature, and microwave power was studied.

TL;DR: This paper reports on an original architecture of microfabricated alkali vapor cell designed for miniature atomic clocks that demonstrates that a longer cell allows to reduce the beam diameter, while preserving the clock performances, and relaxes the constraints on the device packaging.

TL;DR: In this article, the inversion temperature of a single Neon buffer gas vapour microcell was measured to be about 80°C for two different samples and a proposal to develop chip scale atomic clocks with improved long-term frequency stability, simpler configuration (a single buffer gas instead of a buffer gas mixture) and relaxed constraints on pressure accuracy during the cell filling procedure was presented.

TL;DR: In this paper, the thermal behavior of a fully-packaged Caesium vapour cell according to the ambient temperature change when it is locally temperature controlled is investigated. But the authors focus on the thermal behaviour of the Cs-vapour cell in the context of the MEMS-based atomic clock for timing, frequency control and communications (MAC-TFC).

TL;DR: In this paper, the authors present the preliminary results of developments of the European version of MEMS atomic clock presenting a short-term stability of 5×10−11 over 1 hour while operating with less than 200 mW power consumption.