| 量子阱红外探测器光耦合模式的发展状况 |
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| 引用本文： | 连洁,王青圃,程兴奎.量子阱红外探测器光耦合模式的发展状况[J].半导体光电,2002,23(3):150-153. |
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| 作者姓名： | 连洁 王青圃 程兴奎 |
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| 作者单位： | 1. 山东大学,光电系,山东,济南,250100;2. 山东大学,物理系,山东,济南,250100 |
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| 摘 要： | 根据子带跃迁的量子力学选择定则,量子阱红外探测器对垂直于阱层的辐射无响应,只有利用光耦合模式,把正入射的光束转变成量子阱可吸收的形式,红外探测器的量子效率才能提高.文中介绍了几种主要光耦合模式及其发展现状,指出各耦合模式的设计思想和适用范围,并进行了比较.
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| 关 键 词： | 量子阱 光耦合 响应率 |
| 文章编号： | 1001-5868(2002)03-0150-04 |
| 修稿时间： | 2001年10月10日 |
Recent Progress on Optical Coupling Mode for QW IR Detectors |
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| LIAN Jie ,WANG Qing pu ,CHENG Xing kui.Recent Progress on Optical Coupling Mode for QW IR Detectors[J].Semiconductor Optoelectronics,2002,23(3):150-153. |
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| Authors: | LIAN Jie WANG Qing pu CHENG Xing kui |
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| Affiliation: | LIAN Jie 1,WANG Qing pu 1,CHENG Xing kui 2 |
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| Abstract: | Based on the quantum mechanical selection rules associated with intersubband transitions, quantum well infrared detectors do not respond to normal incident light. In order to increase the infrared absorption, responsivity, and detectivity in infrared detectors, it is necessary to deflect the incoming light away from the normal by means of optical coupling. The design consideration and application area of a few optical coupling modes are introduced and discussed. Their performances are compared with each other. |
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| Keywords: | quantum wells optical coupling responsivity |
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