光电探测器
红外线的
光电子学
材料科学
发光二极管
二极管
光学
半导体
量子点
物理
作者
I. Ramiro,Antonio Martı́,E. Antolín,A. Medina,A. Ĺuque,J. M. Ripalda,Y. González
摘要
We demonstrate a new class of semiconductor
device: the optically triggered infrared photodetector (OTIP). This photodetector is based on a new physical principle that allows the detection of infrared light to be switched ON and OFF by means of an external light. Our experimental device, fabricated using InAs/AlGaAs quantum-dot technology, demonstrates normal
incidence infrared detection in the 2−6 μm range. The detection is optically triggered by a 590 nm light-emitting diode.
Furthermore, the detection gain is achieved in our device without an increase of the noise level. The novel characteristics of OTIPs open up new possibilities for third generation infrared imaging systems
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