TY - JOUR ID - 31618 TI - Controlling of Absorption and Dispersion Spectrum via Electromagnetically Induced Transparency JO - Journal of Sciences, Islamic Republic of Iran JA - JSCIENCES LA - en SN - 1016-1104 Y1 - 2004 PY - 2004 VL - 15 IS - 4 SP - EP - DO - N2 - In this paper we examine the absorption and dispersion properties of a weak probe field via Electromagnetically Induced Transparency (EIT) in a four-level system. It is shown that under certain condition, using this model, the absorption cancellation is appeared and the medium becomes transparent to the weak probe field. It will be shown that the controlling of absorption and dispersion spectrum depends on some atomic parameters. The effects of quantum interference on the absorption and dispersion spectrum are also investigated UR - https://jsciences.ut.ac.ir/article_31618.html L1 - https://jsciences.ut.ac.ir/article_31618_9dcbc92105532ff190806d116c5652a0.pdf ER -