کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1866184 | 1037935 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The thermal effects on the negative refraction of sonic crystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The thermal effects on the negative refraction of sonic crystals The thermal effects on the negative refraction of sonic crystals](/preview/png/1866184.png)
چکیده انگلیسی
The thermal effects on the refractive direction of a sonic crystal consisted of steel rods in air background is investigated. By means of varying the temperature, the refractive direction and the range of the incident angle with the negative refraction are changed accordingly due to the variations of the air density and sound speed. The focus behaviors, intensity and distance, of the sonic crystal plane lens with varying temperature are studied. Moreover, at certain frequencies and incident angles, the refractive angles can be changed from negative to positive by varying the temperature of a sonic crystal with air background. The tunable sonic crystal can be used to design various novel ultrasonic devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 372, Issue 15, 7 April 2008, Pages 2701–2705
Journal: Physics Letters A - Volume 372, Issue 15, 7 April 2008, Pages 2701–2705
نویسندگان
Liang-Yu Wu, Wen-Pei Yang, Lien-Wen Chen,