کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9828922 | 1524135 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection wavelengths and photocurrents of very long wavelength quantum-well infrared photodetectors
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک اتمی و مولکولی و اپتیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Detection wavelengths and photocurrents of very long wavelength quantum-well infrared photodetectors Detection wavelengths and photocurrents of very long wavelength quantum-well infrared photodetectors](/preview/png/9828922.png)
چکیده انگلیسی
By calculating the density of photogenerated carriers in the continuum above the energy barriers using the PL calibrated QWIP structures, we have demonstrated that due to the high sample quality, the photocarriers can be either in miniband states (Bloch states in the multiple quantum wells), or they transport from one quantum well to the next in the form of propagating waves. We have further calculated the densities of photocarriers in the QWIPs reported in the literature. It is shown that the Bloch wave boundary conditions are appropriate for QWIPs with narrow QWs, whereas propagating wave boundary conditions are appropriate for wide QWs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infrared Physics & Technology - Volume 47, Issues 1â2, October 2005, Pages 29-36
Journal: Infrared Physics & Technology - Volume 47, Issues 1â2, October 2005, Pages 29-36
نویسندگان
Ning Li, Fangming Guo, Honglou Zhen, J. Jiang, W. Lu, Y. Fu,