日　時：2010年9月2日（木）13：30-15：00

場　所：九州大学筑紫キャンパス　総合理工学研究院先端エネルギー理工学専攻建屋(H棟)２階講義室

講　演：Richard M. More, (Lawrence Berkeley National Laboratory, Berkeley, CA and Lawrence Livermore National Laboratory, Livermore, CA)

題　目：Emission of Light by Hot Dense Matter

要　旨：

Radiation emitted by hot matter is clearly related to the material temperature but the quantitative calculation of emission and emissivity raises interesting questions for electromagnetic theory. Emission of visible light by hot metals is an example of nonlocal energy transport: light energy is carried across the skin depth by evanescent electromagnetic waves. Emission theory is also a branch of statistical electrodynamics and deeply related to the Kubo formula for high-frequency conductivity. The theory explains why metals emit strongly polarized light, a phenomenon originally observed by R. A. Millikan, and recently confirmed by experiments in NIFS (Toki, Gifu), UEC (Chofu, Tokto) and LBNL (Berkeley, CA). In this talk we survey light emission by small droplets of hot liquid metal, emission by metals and plasmas with strong surface temperature gradients (laser heated solids and/or shock-release plasmas), and discuss the calculation of emission in molecular dynamic (MD) particle simulations of fusion plasmas at ignition conditions.