Presentation Information

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)

[23a-13N-5]Comprehensive interpretation of luminescence lifetime and intensity in metals

〇Tohru Suemoto¹, Haruki Morino¹, Tsuyoshi Okuno¹, Shota Ono², Takeshi Suzuki³, Kozo Okazaki³, Shuntaro Tani³, Yohei Kobayashi³ (1.Univ. Electro-Communications, 2.IMR Tohoku Univ., 3.ISSP Univ. Tokyo)

Keywords:

metal,luminescence,ultrafast

We measured time-evolution of the femtosecond luminescence in 15 kinds of elemental metals including simple, noble and transition metals. The time-evolution curves are decomposed into a quasi-instantaneous and an exponentially decaying component to evaluate decay rate. The results are compared with a prediction based on two-temperature model, where electron-phonon coupling constants, lambda <omega²>, are calculated using Eliashberg function derived by ab-initio calculation. The results show that all the metals, excepting Be, distribute near the theoretical prediction.

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