| 室温CdxZn1—xTe／ZnTe多量子阱光学双稳态的研究 |
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| 引用本文： | 栗红玉,申德振.室温CdxZn1—xTe／ZnTe多量子阱光学双稳态的研究[J].光学学报,1997,17(12):630-1633. |
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| 作者姓名： | 栗红玉 申德振 |
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| 作者单位： | 中国科学院激发态物理开放研究实验室 |
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| 摘 要： | 研制了室温ＣｄｘＺｎ１－ｘＴｅ／ＺＮＴｅ多量子阱法布里－珀罗腔光双稳器件，并在该器件上观察到皮秒一级的室温激子光双稳。研究结果表明，ＣｄＺｎ１－ｘＴｅ／ＺｎＴｅ多量子阱光双稳器件的光双稳值和对比度分别为３６３ｋＷ／ｃｍ＾２和４：１。根据ＣｆｘＺｎ１－ｘＴｅ／ＺｎＴｅ多量子阱的吸收谱和激子非线性理论，归结了ＣｄｘＺｎ１－ｘＴｅ／ＺｎＴｅ多量子阱光双稳的主要非线性机理为激子的饱和和吸收。
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| 关 键 词： | 多量子阱 光双稳器件 镉锌碲 碲化锌 |
| 收稿时间： | 1996/9/16 |
CdxZn1-xTe/ZnTe MQW Optical Bistable Device at Room Temperature |
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| Li Hongyu,Shen Dezhen,Zhang Jiying,Lin Jiuling Yang Baojun,Fan Xiwu.CdxZn1-xTe/ZnTe MQW Optical Bistable Device at Room Temperature[J].Acta Optica Sinica,1997,17(12):630-1633. |
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| Authors: | Li Hongyu Shen Dezhen Zhang Jiying Lin Jiuling Yang Baojun Fan Xiwu |
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| Abstract: | A Cd x Zn 1-x Te/ZnTe multiple quantum well (MQW) optical bistable device has been fabricated, and its optical bistability is investigated at room temperature. The result indicates that the threshold and contrast ratio for the optical bistability in Cd x Zn 1-x Te/ZnTe MQW optical bistable device are about 363 kW/cm 2 and 4:1, respectively. On the basis of the excitonic nonlinear theories, excitonic absorption spectrum in the Cd x Zn 1-x Te/ZnTe MQW, we attribute the major nonlinear mechanism for the optical bistability to the saturating effect of excitonic absorption. |
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| Keywords: | Cd x Zn 1-x Te/ZnTe MQW optical bistable device excitonic absorption |
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