کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9786031 1512663 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New holographic technique for third-order optical properties measurement
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
New holographic technique for third-order optical properties measurement
چکیده انگلیسی
We present a new nonlinear holographic method, which yields the real and imaginary parts of the third-order susceptibility (χ〈3〉) of an optical medium. The method consists in producing a nonlinear interference pattern between two beams of different intensity, where the strong beam induces nonlinear effects in the tested sample. Only three laser shots are required to extract both real and imaginary parts of χ〈3〉 by means of the images recorded on a CCD camera. We apply the method to measure the nonlinear refractive index (n2) of new synthesized organic materials in the pico-second regime (30 ps pulse duration at 1064 nm). The obtained results show that the proposed technique allows the measurement of n2 coefficients in diluted materials with a sensitivity of λ/1500 at 1 GW cm−2 of input intensity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 247, Issues 4–6, 15 March 2005, Pages 453-460
نویسندگان
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