D27 コヒーレントフォノン励起面におけるパルストレインビーム照射応答の時間分解計測に関する研究(OS5 加工計測・評価(1))

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タイトル別名
  • D27 Time-resolved detection lattice vibrating surface from femto-pulse-train-beam radiation

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Femtosecond pulse processing enables fine processing without the thermal diffusion. In this paper we generate femtosecond pulse train beam, which has several femtosecond pulse in a few picosecond, and investigate the processing result using femtosecond pulse train beam. It is considered the coherent phonon, which is the forced lattice oscillation due to the surface electron vibration in the high electric field, is excited on the surface in the case of irradiation both the femtosecond pulse train and femtosecond single pulse. In this paper, we measure for the coherent lattice oscillation using femtosecond pulse train

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