کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9586177 | 1505939 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polarization and wave-vector-dependent measurements by four-wave mixing in ZnO: valence-band ordering and biexcitons
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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: Polarization and wave-vector-dependent measurements by four-wave mixing in ZnO: valence-band ordering and biexcitons Polarization and wave-vector-dependent measurements by four-wave mixing in ZnO: valence-band ordering and biexcitons](/preview/png/9586177.png)
چکیده انگلیسی
We have investigated free excitons and biexcitons of bulk ZnO by time-integrated and spectrally resolved four-wave mixing (FWM). The polarization- and wave-vector-dependent FWM signals for A and B excitons demonstrate clearly that the valence-band ordering is A-Î9, B-Î7, and C-Î7. Also, we gave qualitative explanation of the FWM signals induced by excitons and biexcitons in ZnO. For negative delay times, bound and unbound AB-biexcitons (A exciton-B exciton correlation), which have been considered to play a minor role in GaAs heterostructures, was found to play an important role and give a significant qualitative impact to the optical response of ZnO.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 112, Issues 1â4, April 2005, Pages 34-39
Journal: Journal of Luminescence - Volume 112, Issues 1â4, April 2005, Pages 34-39
نویسندگان
S. Adachi,