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ISSN: 1023-5086


ISSN: 1023-5086

Scientific and technical

Opticheskii Zhurnal

A full-text English translation of the journal is published by Optica Publishing Group under the title “Journal of Optical Technology”

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DOI: 10.17586/1023-5086-2020-87-11-10-20

УДК: 535.233.43

Measuring the radiation coefficient distribution and surface temperature distribution of a tungsten body heated by a powerful laser

For Russian citation (Opticheskii Zhurnal):

Мантрова Ю.В., Зинин П.В., Булатов К.М., Быков А.А. Измерение распределения коэффициента теплового излучения и температуры поверхности вольфрама, нагретого излучением мощного лазера // Оптический журнал. 2020. Т. 87. № 11. С. 10–20.


For citation (Journal of Optical Technology):

Yu. V. Mantrova, P. V. Zinin, K. M. Bulatov, and A. A. Bykov, "Measuring the radiation coefficient distribution and surface temperature distribution of a tungsten body heated by a powerful laser," Journal of Optical Technology . 87(11), 642-649 (2020).


In this article, we present what we believe to be the first successful demonstration of the emissivity distribution together with the temperature distribution of a tungsten plate at the laser heating spot. The measurements were made in the 740–800 nm wavelength range by using the multispectral imaging method on a laser-heating apparatus with a tandem acousto-optic filter (TAOTF). The TAOTF consists of two conjugated acousto-optic crystals connected to a high-definition video camera. The emissivity measurement error was less 7% for a maximum point temperature (2540 K) at the laser heating spot.


laser heating, coefficient of thermal radiation, temperature measurement, laser optics, acoustooptic filter, tungsten heating

OCIS codes: 140.0140, 100.0100, 110.0110


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