公开(公告)号：US07501636B1

公开(公告)日：2009-03-10

申请号：US11858230

申请日：2007-09-20

申请人： Kyung-ah Son ,  Jeongsun J. Moon ,  Goutam Chattopadhyay ,  Anna Liao ,  David Ting

发明人： Kyung-ah Son ,  Jeongsun J. Moon ,  Goutam Chattopadhyay ,  Anna Liao ,  David Ting

IPC分类号： G01T1/24

CPC分类号： H04N5/33 ,  G01J5/02 ,  G01J5/023 ,  G01J5/08 ,  G01J5/0837 ,  G01J5/10

摘要： A photodetector, detector array, and method of operation thereof in which nanojunctions are formed by crossing layers of nanowires. The crossing nanowires are separated by a few nm thick electrical barrier layer which allows tunneling. Each nanojunction is coupled to a slot antenna for efficient and frequency-selective coupling to photo signals. The nanojunctions formed at the intersection of the crossing wires defines a vertical tunneling diode that rectifies the AC signal from a coupled antenna and generates a DC signal suitable for reforming a video image. The nanojunction sensor allows multi/hyper spectral imaging of radiation within a spectral band ranging from terahertz to visible light, and including infrared (IR) radiation. This new detection approach also offers unprecedented speed, sensitivity and fidelity at room temperature.

摘要翻译： 一种光检测器，检测器阵列及其操作方法，其中通过交叉纳米线层形成纳米结。 交叉纳米线被几纳米厚的电阻挡层隔开，允许隧穿。 每个纳米结耦合到缝隙天线，用于有效和频率选择性耦合到光信号。 形成在交叉线交叉点处的纳米结定义了垂直隧道二极管，其对来自耦合天线的AC信号进行整流，并产生适于重新构成视频图像的DC信号。 纳米结传感器允许在范围从太赫兹到可见光的光谱带内的辐射的多次/超光谱成像，并且包括红外（IR）辐射。 这种新的检测方法在室温下也提供了前所未有的速度，灵敏度和保真度。