کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7909040 | 1510788 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nonlinear optical measurements of conducting copolymers of aniline under CW laser excitation
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Nonlinear optical measurements of conducting copolymers of aniline under CW laser excitation Nonlinear optical measurements of conducting copolymers of aniline under CW laser excitation](/preview/png/7909040.png)
چکیده انگلیسی
Synthesis and measurements of third-order optical nonlinearity and optical limiting of conducting copolymers of aniline are presented. Single beam z-scan technique was employed for the nonlinear optical studies. Continuous wave He-Ne laser operating at 633 nm was used as the source of excitation. Copolymer samples exhibited reverse saturable absorption (RSA) process. The nonlinear refraction studies depict that the copolymers exhibit self-defocusing property. The estimated values of βeff, n2 and Ï(3) were found to be of the order of 10â2 cm/W, 10â5 esu and 10â7 esu respectively. Self-diffraction rings were observed due to refractive index change when exposed to the laser beam. A good optical limiting and clamping of power of â¼0.9 mW and â¼0.05 mW was observed. Therefore, copolymers of aniline emerge as a potential candidate for photonic device applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 46, August 2015, Pages 186-194
Journal: Optical Materials - Volume 46, August 2015, Pages 186-194
نویسندگان
S. Pramodini, P. Poornesh,