2011 Fiscal Year Final Research Report
Developments of methods for estimating particle shape of black carbon aerosols from polarization and directionality of thermal emission
| Project/Area Number |
22740311
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MOTEKI Nobuhiro 東京大学, 大学院・理学系研究科, 特任助教 (20507818)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 気候.エアロゾル |
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| Research Abstract |
The generalized Kirchhoff's law(Rytov theory) predicts that the polarization state of thermal emission from an individual small particle depends on the particle shape. We show for the first time experimental evidence confirming this prediction for particles smaller than the wavelength. We propose that the measurement of the polarization state of thermal emission may be applicable to real-time analysis of the shape of black carbon particles in air.
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