کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10619107 | 988207 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Third-order optical nonlinearities of naphthalocyanine derivatives measured by resonant femtosecond degenerate four-wave mixing technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
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چکیده انگلیسی
The third-order optical nonlinearities of several naphthalocyanine derivatives were measured under resonant conditions by the femtosecond degenerate four-wave mixing (DFWM) technique. Temporal profiles of the DFWM signal were measured with a time resolution of 0.3 ps, and were found to consist of at least two components, the coherent instantaneous nonlinear response and the slow response with a decay time constant longer than several hundred picoseconds. The latter can be attributed to the long-lived excited state and molecular rotational relaxation. The electronic molecular hyperpolarizability, γe, was evaluated to be in the range (2.1-7.5) Ã 10â29 esu for these macrocycles, two orders of magnitude greater than the nonresonant values.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 155, Issue 1, 15 October 2005, Pages 68-72
Journal: Synthetic Metals - Volume 155, Issue 1, 15 October 2005, Pages 68-72
نویسندگان
Gang Fu, Takefumi Yoda, Kazuo Kasatani, Hiroaki Okamoto, Shunsuke Takenaka,