کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1539723 | 996643 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nonresonant interaction of femtosecond laser pulse with centrosymmetric molecules
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Nonresonant interaction of femtosecond laser pulse with centrosymmetric molecules Nonresonant interaction of femtosecond laser pulse with centrosymmetric molecules](/preview/png/1539723.png)
چکیده انگلیسی
We have derived a system of equations that describes the evolution of the density matrix of a centrosymmetric molecule interacting with a single nonresonant femtosecond laser pulse. The dynamics of the ground electronic state is expressed in terms of the effective Hamiltonian and the coherences between the ground an excited electronic states are functionals of the ground state density matrix. Using the time-dependent perturbation theory, we have calculated the energy deposited in the molecule as a result of rotational stimulated Raman scattering. The effective absorption coefficient is found to be proportional to the fourth power of the pulse amplitude and has a resonance-like dependence with respect to the pulse duration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 283, Issue 4, 15 February 2010, Pages 591-594
Journal: Optics Communications - Volume 283, Issue 4, 15 February 2010, Pages 591-594
نویسندگان
Yu. N. Ponomarev, S.R. Uogintas,