کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1538319 | 996608 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Femtosecond filament induced birefringence in argon and in air: Ultrafast refractive index change
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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: Femtosecond filament induced birefringence in argon and in air: Ultrafast refractive index change Femtosecond filament induced birefringence in argon and in air: Ultrafast refractive index change](/preview/png/1538319.png)
چکیده انگلیسی
The birefringence of a linearly polarized femtosecond laser filament in gases has been previously established. In this work, we report the time-dependent refractive index measurements of the filament based upon the spectral modulation of a weak probe pulse in air and in argon gas at 1 atmospheric pressure. The polarization dependence of the refractive index modulation induced by the delayed molecular alignment and by the electronic Kerr effect is highlighted. A numerical simulation of the refractive indices, which takes into account the molecular alignment, the electronic Kerr non-linearity and the plasma, is in good agreement with the measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 283, Issue 13, 1 July 2010, Pages 2732–2736
Journal: Optics Communications - Volume 283, Issue 13, 1 July 2010, Pages 2732–2736
نویسندگان
Claude Marceau, S. Ramakrishna, Simon Génier, Tie-Jun Wang, Yanping Chen, Francis Théberge, Marc Châteauneuf, Jacques Dubois, Tamar Seideman, See Leang Chin,