کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5375632 | 1504308 | 2008 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase control of the competition between electronic transitions in a solvated laser dye
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phase control of the competition between electronic transitions in a solvated laser dye Phase control of the competition between electronic transitions in a solvated laser dye](/preview/png/5375632.png)
چکیده انگلیسی
Excited state population can be manipulated by resonant chirped laser pulses through pump-dump processes. We investigate these processes in the laser dye LD690 as a function of wavelength by monitoring the saturated absorption of chirped ultrafast pulses. The resulting nonlinear absorption spectrum becomes increasingly complex as the pulse is tuned to shorter wavelengths. However, fluorescence measurements indicate that the excited state population depends weakly on chirp when the pump wavelength is far from the lowest order electronic transition. Using a learning algorithm and closed-loop control, we find nonlinear chirp parameters that optimize features in the transmission spectrum. The results are discussed in terms of competition between excited state absorption and stimulated resonant Raman scattering.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 350, Issues 1â3, 23 June 2008, Pages 75-86
Journal: Chemical Physics - Volume 350, Issues 1â3, 23 June 2008, Pages 75-86
نویسندگان
Elizabeth C. Carroll, Andrei C. Florean, Philip H. Bucksbaum, Kenneth G. Spears, Roseanne J. Sension,