کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7133410 | 1461824 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-reflectivity electromagnetic two-axis microscanner using dielectric multi-layer reflective surface
ترجمه فارسی عنوان
میکروسکوپ الکترومغناطیسی دو بعدی محوری با انعکاس بالا با استفاده از سطح بازتابنده چند لایه دی الکتریک
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کلمات کلیدی
میکروسکوپ دو محور، بازتابنده بالا، چند لایه دی الکتریک، تابش اشعه لیزر،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
A high-reflectivity electromagnetic two-axis microscanner is presented, which uses dielectric multi-layer coating on the aluminum film at the reflective surface. The microscanner is driven biaxially with the torque generated between the radially directed magnetic field and the current path through a single-turn copper coil patterned on the scanner. To enhance reflectivity, dielectric multi-layers of Al2O3 and TiO2 films are coated on the aluminum reflective surface of the mirror. A reflectance of 96.31% was obtained by using two pairs of dielectric films at a wavelength of 850â¯nm. Laser irradiation tests were performed to measure the operational reliability of the microscanner. The temporal drift of the optical scan angle for the mirror with two pairs of dielectric layers was measured to be 0.16° during a 6-h operation using a femtosecond pulsed laser irradiation with an average power of 2.3â¯W and a high repetition rate of 80â¯MHz. However, for the mirror where the reflection surface was coated with an aluminum layer only, a 1.74° degradation of the tilting angle was observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 276, 15 June 2018, Pages 186-195
Journal: Sensors and Actuators A: Physical - Volume 276, 15 June 2018, Pages 186-195
نویسندگان
Haesoo Jeong, Chang-Hyeon Ji, Seung-Ki Lee, Jae-Hyoung Park,