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Electron focusing in two‐dimensional systems by means of an electrostatic lens

 

作者: J. Spector,   H. L. Stormer,   K. W. Baldwin,   L. N. Pfeiffer,   K. W. West,  

 

期刊: Applied Physics Letters  （AIP Available online 1990）
卷期: Volume 56, issue 13  

页码: 1290-1292

 

ISSN:0003-6951

 

年代: 1990

 

DOI:10.1063/1.102538

 

出版商: AIP

 

数据来源: AIP

 

摘要:

We introduce an electrostatic lens for ballistic electrons in two‐dimensional (2D) systems and demonstrate its focusing action in very high mobility GaAs‐(AlGa)As heterostructures. This is the first refractive element for the control of 2D electrons. It exemplifies the close analogy between ballistic propagation in 2D electron systems and traditional geometrical optics.

 

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