Reduction in Escape Times of Photogenerated Charge Carriers with Asymmetric Intrastep Quantum Wells and Subsequent Improvement in Saturation Optical Intensity

Dong-Soo Shin

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Reduction in Escape Times of Photogenerated Charge Carriers with Asymmetric Intrastep Quantum Wells and Subsequent Improvement in Saturation Optical Intensity

机译：减少具有不对称步内量子阱的光生载流子的逸出时间，并随后提高饱和光强度

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Escape times of photogenerated charge carriers from an InGaAsP intrastep quantum well (IQW) are calculated and compared with those from a conventional quantum well (QW). Since the red shift of the IQW is initiated at a higher electric field, the escape times from the IQW are smaller than those from the conventional QW at given values in modulator transmission. From the reduction in escape times, improvements in the exciton saturation intensity are estimated to be a factor of ～5 for both high and low modulator-transmission points.

机译：计算了从InGaAsP台阶内量子阱（IQW）产生的光生电荷载流子的逸出时间，并将其与常规量子阱（QW）的逸出时间进行了比较。由于IQW的红移是在较高的电场下启动的，因此在调制器传输中，在给定值下，来自IQW的逸出时间要小于来自传统QW的逸出时间。从逃逸时间的减少中，对于高和低调制器传输点，激子饱和强度的提高估计约为5倍。

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来源
《Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers》 |2006年第12期|p.9063-9065|共3页
作者
Dong-Soo Shin;
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作者单位

Department of Applied Physics, Hanyang University, Ansan, Gyeonggi-do 426-791, Korea;

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原文格式 PDF
正文语种 eng
中图分类应用物理学;
关键词
electroabsorption; quantum well; step barrier; escape time; saturation;

机译：电吸收量子阱台阶势垒逃逸时间饱和;

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1. Measurement of carrier escape rates, exciton saturation intensity, and saturation density in electrically biased multiple-quantum-well modulators [J] . Sizer T. II, Woodward T.K. IEEE Journal of Quantum Electronics . 1994,第2期

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2. Improvement of saturation optical intensity in electroabsorption modulators with asymmetric intra-step-barrier coupled double strained quantum wells [J] . Abedi K. The European physical journal. Applied physics . 2011,第1期

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Reduction in Escape Times of Photogenerated Charge Carriers with Asymmetric Intrastep Quantum Wells and Subsequent Improvement in Saturation Optical Intensity

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