Narrowing of electromagnetically induced transparency by using structured coupling light in <sup>85</sup> Rb atomic vapor medium
Vikas Singh Chauhan, Rohit Kumar, Dixith Manchaiah, Praveen Kumar, Raghavan K. Easwaran
Abstract
Abstract In this manuscript, we observed narrowing of electromagnetically induced transparency (EIT) spectral width by using superimposed Laguerre–Gaussian (LG) beams for coupling light. EIT with narrow transparency width has a potential application towards slow light for quantum memory devices. LG beams of σ + and σ − polarization are superimposed and used as coupling light for an EIT experiment. A theoretical model is discussed using a semi-classical treatment and the experimental part confirms the narrowing of EIT width for higher values of ‘ l ’.
Topics & Concepts
Electromagnetically induced transparencyTransparency (behavior)Atomic physicsCoupling (piping)Materials scienceOpticsPhysicsOptoelectronicsMetallurgyLawPolitical scienceQuantum optics and atomic interactionsQuantum Information and CryptographyRandom lasers and scattering media