Spallation dynamics during femtosecond-laser ablation studied by time-resolved reflectivity with double-pump pulses

Kumada, Takayuki ; Otobe, Tomohito; Nishikino, Masaharu; Hasegawa, Noboru; Hayashi, Terutake*

We studied femtosecond laser ablation dynamics using time-resolved reflectivity with double pump pulses. We found that the time-scale of spallation was comparable to the theoretical estimation of stress relaxation time, which corresponds to the penetration depth of the pump laser divided by sound velocity.

Language	:	Japanese
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Meeting title	:	第8回文部科学省「最先端の光の創成を目指したネットワーク研究拠点プログラム」シンポジウム
Held date	:	2016/01
Location (city)	:	吹田
Location (country)	:	日本
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Keywords	:	フェムト秒レーザーアブレーション
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Cooperating Institute	:	文部科学省

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Registration No. : BB20152480
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