期刊
APPLIED OPTICS
卷 50, 期 22, 页码 4262-4267出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.50.004262
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资金
- Korea University of Technology and Education (KUT)
- Ministry of Education, Science and Technology (MEST) [2010-0006116]
- National Research Foundation of Korea [2010-0006116] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This paper shows that spectrally resolved thermal radiation from silica aggregate particles can be used to extract an emissivity and a temperature in the visible regime. Emissivity of silica aggregate particles at temperatures above 2000 K is measured by the analysis of emission radiation spectra from the particles. Temperature is estimated from the relation between the emission intensity and the wavenumber. Relative emissivities at temperatures from 2150 to 2919 K are presented. Proper knowledge of optical properties for silica aggregate particles will help further the understanding of thermophysics at high temperature. (C) 2011 Optical Society of America
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