Effect of buffer gas on electromagnetically induced transparency in a ladder system using thermal rubidium vapor

Abstract

We report on the first observation of electromagnetically induced transparency (EIT) in a ladder system in the presence of a buffer gas. In particular we study the 5S1/2 - 5P3/2 - 5D5/2 transition in thermal rubidium vapor with a neon buffer gas at a pressure of 6 Torr. In contrast to the line narrowing effect of buffer gas on Λ-systems we show that the presence of the buffer gas leads to an additional broadening of (32 +/- 5) MHz, which suggests a cross section for Rb(5D5/2)-Ne of σ = (7 +/- 1) x 10-19 m2. However, in the limit where the coupling Rabi frequency is larger than k the collisional dephasing a strong transparency feature can still be observed.

4 pages, 4 figures

References in corpus (7)

• Coherent optical detection of highly excited Rydberg states using electromagnetically induced transparency
• Mesoscopic Rydberg Gate based on Electromagnetically Induced Transparency
• Long-range interactions and entanglement of slow single-photon pulses
• Coherent Excitation of Rydberg Atoms in Thermal Vapor Microcells
• Giant electro-optic effect using polarizable dark states
• Electromagnetically Induced Transparency and Light Storage in an Atomic Mott Insulator
• Electro-optic control of atom-light interactions using Rydberg dark-state polaritons

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• Direct measurement of excited-state dipole matrix elements using electromagnetically induced transparency in the hyperfine Paschen-Back regime
• Four-wave mixing in a non-degenerate four-level diamond configuration in the hyperfine Paschen-Back regime
• High contrast D${}_1$ line electromagnetically induced transparency in nanometric-thin rubidium vapor cell
• Correlation function of spin noise due to atomic diffusion
• Active narrowband filtering, line narrowing and gain using ladder electromagnetically induced transparency in an optically thick atomic vapour
• Amplified spontaneous emission at 5.23 um in two-photon excited Rb vapour
• Effects of inert background gases and photo-illumination on three-color electromagnetically induced transparency of rubidium vapor
• Hyperfine structure and collisions in three-photon Rydberg electromagnetically induced transparency