کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9802005 1515737 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Resonant two-photon excitation of 1s paraexcitons in cuprous oxide
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Resonant two-photon excitation of 1s paraexcitons in cuprous oxide
چکیده انگلیسی
We have created paraexcitons in Cu2O via resonant two-photon generation, and examined their population dynamics by means of time-correlated single photon detection. Confining the excitons to a constant volume in a harmonic-potential trap made with inhomogeneous applied stress along the [001] axis, we find that paraexcitons are created directly, and orthoexcitons appear primarily through a up-conversion of the paraexcitons. Also we generate excitons with two colliding pulses, and the luminescence is weaker than that from one beam excitation with same total laser power. These results show that resonant one-beam two-photon generation of paraexcitons is a promising way to pursue Bose-Einstein condensation of paraexcitons.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 134, Issues 1–2, April 2005, Pages 159-164
نویسندگان
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