Normal-Incidence Multiple Quantum-Well Infared Detectors

本建议书包括一个项目， 制作正入射多量子 井红外探测器（QWIPs）在一个 ETDL与 康奈尔大学。 QWIPs已经 作为高浓度的潜在成分， 性能，二维成像阵列。 在ETDL，对QWIPs使用的研究 电子作为载流子，具有探测率 在商业上与II-VI探测器竞争 available. 然而，由于选择 一个电子经历 子带间跃迁正入射 检测器阵列的照明不 可能 针对这一点，QWIPs使用 空穴子带间跃迁最近 被调查了

This proposal covers a project to design and fabricate normal-incidence multiple quantum well infrared detectors (QWIPs) in a collaborative effort between ETDL and Cornell University. QWIPs have been investigated as potential components of high performance, two-dimensional imaging arrays. At ETDL, research on the QWIPs use electrons as carriers, with detectivities competitive with II-VI detectors commercially available. However, because of the selection rule for an electron to undergo an intersubband transition normal incidence illumination of a an array of detectors is not possible. In response to this, QWIPs using hole intersubband transitions have recently been investigated.