کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
851545 | 909324 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electromagnetically induced transparency and enhanced self-Kerr nonlinearity in a four-level scheme
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
We analyze the interaction of three laser fields with a four-level quantum system in a tripod configuration. We obtain an analytical expression for the linear susceptibility and nonlinear susceptibility of a weak-probe field and show that the properties of double electromagnetically induced transparency and the self-Kerr nonlinearity can be modified significantly by changing the ratio of the two coupling fields. We also show that a coherently prepared tripod scheme can be used for a giant self-Kerr nonlinearity generation with vanishing absorption in the case of optimal ratio. We present a physical understanding of our numerical results using the dressed-state approach and analytical explanation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 122, Issue 11, June 2011, Pages 986–990
Journal: Optik - International Journal for Light and Electron Optics - Volume 122, Issue 11, June 2011, Pages 986–990
نویسندگان
Xiang-an Yan, Li-qiang Wang, Bao-yin Yin, Jian-ping Song,