Multi-spectral image processing for the measurement of a spatial temperature distribution on the surface of a laser-heated microscopic object
Автор: Bulatov Kamil M., Mantrova Yuliya V., Bykov Alexey A., Machikhin Alexander S., Gaponov Maxim I., Zinin Pavel V., Troyan Ivan A., Batshev Vladislav I., Kutuza Igor B.
Журнал: Компьютерная оптика @computer-optics
Рубрика: Дифракционная оптика, оптические технологии
Статья в выпуске: 6 т.41, 2017 года.
Бесплатный доступ
In this paper, we demonstrate that combining a laser heating (LH) system with a tandem acousto-optical tunable filter (TAOTF) allows us to measure the temperature distribution (TD) across a laser-heated microscopic specimen. Spectral image processing is based on one-dimensional (1D) non-linear least squares fitting of the Planck radiation function. It is applied for determining the temperature T at each point ( x, y ) of the specimen surface. It is shown that spectral image processing using the 1D non-linear least squares fitting allows measurement of the TD of the laser-heated microscopic specimen with higher precision and stability than those of the conventional linear least-squares fitting of the Wien approximation of Planck’s law.
Laser heating, diamond anvil cell, temperature measurement, acousto-optical tunable filter, spectral imaging
Короткий адрес: https://sciup.org/140228682
IDR: 140228682 | DOI: 10.18287/2412-6179-2017-41-6-864-868
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