High contrast D1 line electromagnetically induced transparency in nanometric-thin rubidium vapor cell

[hal-00620896, v1] High contrast D1 line electromagnetically induced transparency in nanometric-thin rubidium vapor cell

Electromagnetically induced transparency (EIT) on atomic D1 line of rubidium is studied using a nanometricthin cell with atomic vapor column length in the range of L = 400 800 nm. It is shown that the reduction of the cell thickness by 4 orders as compared with an ordinary cm-size cell still allows to form an EIT resonance for L = λ (λ = 794 nm) with the contrast of up to 40 %. Remarkable disti...

Laser Spectroscopy with Nanometric Cells Containing Atomic Vapor of Metal: Influence of Buffer Gas

Comparison of absorption and fluorescence in a nano-cell containing Rb vapor with other Rb nano-cells where neon gas is added is presented. The effect of collapse and revival of Dicke-type narrowing is still observable for the Rb nano-cells where Ne gas is added under 6 and 20 Torr pressure for the thickness L=/2 and L=, where  is a resonant laser wavelength 794 nm (D1 line). Particularly fo...

The Construction and Characterization of a Magneto-Optical Trap for Rubidium-87 and Electromagnetically-Induced Transparency in Rubidium-87 in a Vapor Cell

Adiabatic frequency conversion of optical information in atomic vapor.

We experimentally demonstrate a communication protocol that enables frequency conversion and routing of quantum information in an adiabatic and thus robust way. The protocol is based on electromagnetically induced transparency (EIT) in systems with multiple excited levels: transfer and/or distribution of optical states between different signal modes is implemented by adiabatically changing the ...

Bright narrowband biphoton generation from a hot rubidium atomic vapor cell

We demonstrate the generation of high-quality narrowband biphotons from a Doppler-broadened hot rubidium atomic vapor cell. Choosing a double-K atomic energy level scheme for optimizing both spontaneous four-wave mixing nonlinear parametric interaction and electromagnetically induced transparency (EIT), we achieve a biphoton spectral brightness as high as 14 000 s MHz . Meanwhile, we apply a sp...