کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8145368 1524093 2018 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Micro-photoacoustic infrared spectroscopy
ترجمه فارسی عنوان
طیف سنجی مادون قرمز میکرو فوتوکوسیت
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک اتمی و مولکولی و اپتیک
چکیده انگلیسی
This investigation establishes, for the first time, the viability of micro-photoacoustic infrared spectroscopy (microPAS). A cell that allows photoacoustic (PA) infrared spectroscopy measurements on small samples was constructed and tested in this work. The setup allows visualizing the sample and selecting specific measurement positions. It can be used with conventional Fourier-Transform infrared spectrometers and a variety of light sources, including conventional near- and mid-infrared lamps, synchrotron radiation, and laser sources. The cell was successfully used to discriminate between individual polymer beads based on differences between their PA spectra. The demonstrated spatial resolution is better than 100 µm and, in at least one case, as good as 20 µm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infrared Physics & Technology - Volume 93, September 2018, Pages 240-246
نویسندگان
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