کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1535896 | 1512637 | 2012 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Left-handedness in K-type multilevel system in the presence of spontaneously generated coherence
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Left-handedness in K-type multilevel system in the presence of spontaneously generated coherence Left-handedness in K-type multilevel system in the presence of spontaneously generated coherence](/preview/png/1535896.png)
چکیده انگلیسی
The left-handedness in atomic vapor medium consisting of five energy levels in K-type configuration is studied in this work. The theoretical modeling has been done using density matrix approach in which the spontaneously generated coherence (SGC) is also included. The system shows negative electrical permittivity (ϵ) as well as negative magnetic permeability (μ) and thus displays the negative refractive index (n) for certain values of system parameters in the presence of SGC. The parameters (ϵ, μ, n) quantifying left-handedness in the system become more negative if the SGC is strong. Under the off-resonant conditions these parameters become less negative and the left-handedness of system degrades.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 285, Issues 13â14, 15 June 2012, Pages 3162-3168
Journal: Optics Communications - Volume 285, Issues 13â14, 15 June 2012, Pages 3162-3168
نویسندگان
K.I. Osman, A. Joshi,