Detection of nonthermal melting by ultrafast X-ray diffraction.
نویسندگان
چکیده
Using ultrafast, time-resolved, 1.54 angstrom x-ray diffraction, thermal and ultrafast nonthermal melting of germanium, involving passage through nonequilibrium extreme states of matter, was observed. Such ultrafast, optical-pump, x-ray diffraction probe measurements provide a way to study many other transient processes in physics, chemistry, and biology, including direct observation of the atomic motion by which many solid-state processes and chemical and biochemical reactions take place.
منابع مشابه
Direct Observation of Ultrafast Non-thermal Melting by Ultrafast X-ray Diffraction
Ultrafast nonthermal melting of femtosecond laser-irradiated germanium was observed directly for the first time using sub-picosecond, 1.54-angstrom x-ray diffraction. Such measurements allow the study of transient atomic motion fundamental to many processes in physics, chemistry, and biology.
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ورودعنوان ژورنال:
- Science
دوره 286 5443 شماره
صفحات -
تاریخ انتشار 1999