کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7921286 | 1511747 | 2018 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pulsed laser deposited Zn1-xTixO (0.000â¤xâ¤0.050) thin films for tunable refractive index and nonlinear optical applications
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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: Pulsed laser deposited Zn1-xTixO (0.000â¤xâ¤0.050) thin films for tunable refractive index and nonlinear optical applications Pulsed laser deposited Zn1-xTixO (0.000â¤xâ¤0.050) thin films for tunable refractive index and nonlinear optical applications](/preview/png/7921286.png)
چکیده انگلیسی
In the present paper, a systematic study on the structural, linear and nonlinear optical properties of Zn1-xTixO (0â¯â¤â¯xâ¯â¤â¯0.050) thin films is documented. The thin films are grown onto fused silica substrate via pulsed laser deposition technique employing 2nd harmonic of a Q-switched Nd:YAG laser (532â¯nm, 10ns, 10â¯Hz). The crystallinity of the film is observed to be increased initially up-to xâ¯=â¯0.02 and then decreased for higher values of x. A small variation in band gap energy is observed in the Zn1-xTixO thin films with x which is mainly due to the Burstein Moss effect followed by the weak quantum confinement effect. The third order optical nonlinearities in the films are experimentally recorded using modified z-scan technique under cw He:Ne laser (λâ¯=â¯632.8â¯nm) illumination. The nonlinear optical coefficients; β and n2, are observed to be in the range of 1.1-6.0â¯cm/W and (1.0-4.1)â¯Ãâ¯10â4â¯cm2/W, respectively. The maximum value of β (6.0â¯cm/W) and n2 (4.1â¯cm2/W) are observed in the Zn1-xTixO film having xâ¯=â¯0.02. These studies suggest that an optimum concentration of Ti content in ZnO is required for the enhancement in nonlinear optical behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 216, 1 September 2018, Pages 206-212
Journal: Materials Chemistry and Physics - Volume 216, 1 September 2018, Pages 206-212
نویسندگان
Gyan Prakash Bharti, Partha P. Dey, Alika Khare,