scholarly journals Absorption–dispersion in a three-level electromagnetically induced transparency medium including near dipole–dipole interaction effects

2019 ◽  
Vol 430 ◽  
pp. 119-130 ◽  
Author(s):  
Amitabh Joshi ◽  
Juan D. Serna
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Dipole Interaction ◽  
Interaction Effects ◽  
Induced Transparency

scholarly journals A weakly-interacting many-body system of Rydberg polaritons based on electromagnetically induced transparency

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Bongjune Kim ◽  
Ko-Tang Chen ◽  
Shih-Si Hsiao ◽  
Sheng-Yang Wang ◽  
Kai-Bo Li ◽  
...  
Keyword(s):  
Collision Cross Section ◽  
Electromagnetically Induced Transparency ◽  
Principal Quantum Number ◽  
Dipole Interaction ◽  
Einstein Condensation ◽  
Body System ◽  
Many Body ◽  
Interaction Regime ◽  
Bose Einstein ◽  
Induced Transparency

AbstractThe combination of Rydberg atoms and electromagnetically induced transparency (EIT) has been extensively studied in the strong-interaction regime. Here we proposed utilizing an EIT medium with a high optical depth (OD) and a Rydberg state of low principal quantum number to create a many-body system of Rydberg polaritons in the weak-interaction regime. The phase shift and attenuation induced by the dipole–dipole interaction (DDI) were still significant, and can be viewed as the consequences of elastic and inelastic collisions among Rydberg polaritons. We further observed that the width of the transverse momentum distribution of Rydberg polaritons at the exit of the system became notably smaller as compared with that at the entrance. The observation demonstrates the cooling effect in this system. The μs-long interaction time due to the high-OD EIT medium plus the μm2-size collision cross section due to the DDI suggests a feasible platform of polariton Bose–Einstein condensation.

Probing Bloch oscillations using a slow-light sensor

2020 ◽  
Vol 9 (5) ◽  
pp. 243-246
Author(s):  
Pei-Chen Kuan ◽  
Chang Huang ◽  
Shau-Yu Lan
Keyword(s):  
Phase Shift ◽  
Optical Lattice ◽  
Cold Atoms ◽  
Slow Light ◽  
Internal State ◽  
Electromagnetically Induced Transparency ◽  
Bloch Oscillations ◽  
Bloch Oscillation ◽  
Induced Transparency ◽  
Transparency Condition

AbstractWe implement slow-light under electromagnetically induced transparency condition to measure the motion of cold atoms in an optical lattice undergoing Bloch oscillation. The motion of atoms is mapped out through the phase shift of light without perturbing the external and internal state of the atoms. Our results can be used to construct a continuous motional sensor of cold atoms.

scholarly journals Broadband coherent optical memory based on electromagnetically induced transparency

2020 ◽  
Vol 102 (6) ◽  
Author(s):  
Yan-Cheng Wei ◽  
Bo-Han Wu ◽  
Ya-Fen Hsiao ◽  
Pin-Ju Tsai ◽  
Ying-Cheng Chen
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Optical Memory ◽  
Induced Transparency
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