کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7132382 | 1461712 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Critical femtosecond laser parameters for the fabrication of optimal reflecting diffraction gratings on Invar36
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Critical femtosecond laser parameters for the fabrication of optimal reflecting diffraction gratings on Invar36 Critical femtosecond laser parameters for the fabrication of optimal reflecting diffraction gratings on Invar36](/preview/png/7132382.png)
چکیده انگلیسی
This paper discusses the effect of femtosecond laser parameters on Invar36, and the efficiency of reflecting diffraction gratings on the alloy. Several gratings were made with different laser parameters in two regimes: constant repetition rates and constant average laser power on the Invar surface. The efficiency of diffraction gratings is measured in an off-plane configuration by determining the power of diffracted points. With the constant average power technique, an increase in laser influence decreased the ablation depth of lines and increased the line widths. The discoloration of line edges from increasing the laser influence more than 0.57J/cm2 decreased the grating efficiency by over 49%. It was also found that increasing the repetition rate enhanced the grating efficiency and increasing the average power decreased the efficiency. In addition, the ablation threshold of Invar is 0.122J/cm2 when the number of pulses (NOP) equals 389.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 81, June 2016, Pages 97-102
Journal: Optics and Lasers in Engineering - Volume 81, June 2016, Pages 97-102
نویسندگان
Goudarzi Mohammad Hossein, Lin Meng-Jyun, Horng Ji-Bin, Jeng Jeng-Ywan,