کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1541253 996677 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modulation instability with incoherent white light in self-defocusing photorefractive crystal
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Modulation instability with incoherent white light in self-defocusing photorefractive crystal
چکیده انگلیسی

We report on the first experimental observation of modulation instability and spontaneous pattern formation with incoherent white light emitted from an incandescent lamp in self-defocusing photorefractive LiNbO3:Fe crystal. Experimental results show that the modulation instability of white light in self-defocusing medium is related to the input intensity, illumination time and the direction of the crystalline c-axis with respect to that of the lamp filament. At the illumination time t = 0 and the steady-state of MI, we give the spatial distribution of the optical Fourier power spectrum experimentally and the corresponding Fourier transformation of the output intensity numerically, and observe the emergence of the high frequency component along the c-axis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 281, Issue 11, 1 June 2008, Pages 3171–3176
نویسندگان
, , , , , , ,