Open AccessEffect of the buffer gases on the light shift suppression possibility
Author(s) -
M. I. Vaskovskaya,
E. A. Tsygankov,
D. S. Chuchelov,
S. A. Zibrov,
V. V. Vassiliev,
V. L. Velichansky
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.035856
Subject(s) - buffer gas , slow light , optics , modulation (music) , population , radio frequency , electromagnetically induced transparency , materials science , trapping , resonance (particle physics) , relaxation (psychology) , frequency modulation , physics , atomic physics , telecommunications , laser , psychology , ecology , social psychology , demography , photonic crystal , sociology , computer science , acoustics , biology
We theoretically and experimentally demonstrate that the light shift of the coherent population trapping resonance frequency depends on the buffer gases pressure. The light shift suppression becomes impossible when a certain value of the buffer gases pressure is exceeded. We estimate the minimal dimensions of an atomic cell at which the zero light shift and the lowest ground-state relaxation rate can be achieved simultaneously. A new technique of the light shift cancellation by means of a feedback utilizing the RF power modulation is proposed.