کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5369586 1388443 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Color center formation in KCl and KBr single crystals with femtosecond laser pulses
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Color center formation in KCl and KBr single crystals with femtosecond laser pulses
چکیده انگلیسی

Because of their extremely high instantaneous powers, femtosecond lasers can color many nominally transparent materials. Although the excitations responsible for this defect formation occur on subpicosecond time scales, subsequent interactions between the resulting electronic and lattice defects complicate the evolution of color center formation and decay. These interactions must be understood in order to account for the long-term behavior of coloration. In this work, we probe the evolution of color centers generated by femtosecond laser radiation in potassium chloride and potassium bromide single crystals on time scales from microseconds to hundreds of seconds. By using an appropriately chosen probe laser focused through the femtosecond laser spot, we follow the changes in coloration due to individual or multiple femtosecond pulses and the evolution of that coloration for long times after femtosecond laser radiation is terminated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 253, Issue 19, 31 July 2007, Pages 7874-7878
نویسندگان
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