کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5488614 1524101 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectral properties of an UV fused silica within 0.8 to 5 µm at elevated temperatures
ترجمه فارسی عنوان
خواص طیفی یک سیلیس مخلوط شده در 0.8 تا 5 درجه سانتیگراد در دمای بالا
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک اتمی و مولکولی و اپتیک
چکیده انگلیسی
A thermal radiative inverse method was used to determine the high-temperature spectral properties of an ultraviolet fused silica from transmittance data for wavelengths from 0.8 to 5 µm. A developed FTIR system used to measure apparent transmittances of the fused silica sample has been designed and built. In order to reduce the system error caused by detector emission and stray radiation, a measurement strategy at high temperatures was proposed. For deriving spectral transport properties from experimental transmittances, the parameter identification principle was described. The results show that spectral properties are both wavelength dependent and temperature dependent. Spectral refractive indexes rise with increasing temperature and decrease with wavelength. Three absorption peaks of spectral absorptive indices respectively at about 1.4 µm, 2.22 µm and 2.75 µm shift toward the far infrared region and vary differently with increasing temperature. In addition, three absorption bands all become broader for temperatures from 20 °C to 900 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infrared Physics & Technology - Volume 85, September 2017, Pages 293-299
نویسندگان
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