Control of the index of refraction in optically dense medium

16th International Youth Scientific School 'Actual Problems of Magnetic Resonance and its Applications'

Barantsev, K.A.^1 ; Litvinov, A.N.^1

St. Petersburg State Polytechnical University, Saint-Petersburg 195251, Russia^1

关键词: Closed contours;    Electromagnetically-induced transparency;    Frequency radiation;    Index of refraction;    Initial phasis;    Optically dense mediums;    Quasi-periodic;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/478/1/012008/pdf
DOI  :  10.1088/1742-6596/478/1/012008

来源: IOP

【 摘 要 】

In this work we investigate conditions of emergence and destruction of the electromagnetically induced transparency effect in the optically dense medium of atoms which are excited along closed contour of excitation by the three frequency radiation. We found the conditions under which index of refraction of the medium acquires spatial quasi-periodic dependence. It is possible to control this dependence by variation of the initial phases and intensities of the electromagnetic fields.